Question: does light intensity or concentration of carbon dioxide have a higher rate of photosynthesis

What is Photosynthesis | Definition from Seneca Learning Photosynthesis
Photosynthesis
The Rate of Photosynthesis
Want to learn more about Photosynthesis?
 Chlorophyll concentration - High chlorophyll concentration gives a high rate of photosynthesis. Light intensity - Increasing light intensity increases the rate of photosynthesis because more energy is provided. However, if the light intensity is increased above a certain threshold, the rate of photosynthesis will not increase because another factor (such as temperature) is limiting the rate of the reaction. Carbon dioxide concentration - Increasing the carbon dioxide concentration increases the rate of photosynthesis because carbon dioxide is a reactant in photosynthesis. However, above a certain threshold, further increases in the carbon dioxide concentration do not increase the rate of photosynthesis because another factor (such as light intensity) is limiting the rate of reaction. Temperature - Increasing the temperature increases the rate of photosynthesis because more energy is provided. However, if the temperature is increased to above about 45°C, the enzymes that catalyse (speed-up) the reaction begin to denature (not work anymore). This causes the rate of the reaction to drop sharply until it stops altogether. Initially, increasing temperature increases the rate of photosynthesis, as more energy is provided. Above a certain temperature (about 45 degrees Celsius), the enzymes involved in the reaction begin to denature and, consequently, the rate of the reaction begins to drop sharply until it stops altogether.

What is Photosynthesis | Definition from Seneca Learning

Photosynthesis
Photosynthesis
The Rate of Photosynthesis
Want to learn more about Photosynthesis?

What is Photosynthesis? How It Occurs? - SCIENCE & BIOLOGY
 Light intensity
As light intensity increases, so does the rate of photosynthesis. This occurs until it reaches a point where, no matter how much light is available, the rate of photosynthesis will increase no more. There could be the light of a million suns shining on that plant but photosynthesis cannot go faster once this point is reached. This is because something else, such as CO2 concentration, water availability or temperature could be limiting the rate. Often with high light intensity (strong light) comes higher temperatures. CO2 Concentration
As the concentration of carbon dioxide increases, so does the rate of photosynthesis. This occurs until it reaches a point where, no matter how much carbon dioxide is available, the rate will increase no more. There could be all the carbon dioxide in the world available to the plant but photosynthesis cannot go faster. This is because something else, such as light intensity, temperature or water availability, could be limiting the rate. Or it could be that all the enzymes are working at maximum speed and can't work any faster!

What is Photosynthesis? How It Occurs? - SCIENCE & BIOLOGY

Light intensity
As light intensity increases, so does the rate of photosynthesis. This occurs until it reaches a point where, no matter how much light is available, the rate of photosynthesis will increase no more. There could be the light of a million suns shining on that plant but photosynthesis cannot go faster once this point is reached. This is because something else, such as CO2 concentration, water availability or temperature could be limiting the rate. Often with high light intensity (strong light) comes higher temperatures. CO2 Concentration
As the concentration of carbon dioxide increases, so does the rate of photosynthesis. This occurs until it reaches a point where, no matter how much carbon dioxide is available, the rate will increase no more. There could be all the carbon dioxide in the world available to the plant but photosynthesis cannot go faster. This is because something else, such as light intensity, temperature or water availability, could be limiting the rate. Or it could be that all the enzymes are working at maximum speed and can't work any faster!

 It increases the rate of photosynthesis or vice versa...
What effect does the amount of light have on photosynthesis? It increases the rate of photosynthesis. What happens to the rate of photosynthesis if the light intensity increases? It increases. Why does the rate of photosynthesis increase and then reach a plateau as the concentration of CO2 around a plant increases? As the rate of photosynthesis increases and it reaches a
plateau, the lights intensity or CO2 concentration increases. When
it comes below a certain temperature, the rate of photosynthesis
increases as temperature increases. Above the temperature the rate
of photosynthesis decreases as temperature increases. In other words the rate of photosynthesis goes up until no more
as the light brightens or CO2 concentration goes up. When the
temperature falls below the line, the rate of photosynthesis goes
up as the temp goes up.

It increases the rate of photosynthesis or vice versa...
What effect does the amount of light have on photosynthesis? It increases the rate of photosynthesis. What happens to the rate of photosynthesis if the light intensity increases? It increases. Why does the rate of photosynthesis increase and then reach a plateau as the concentration of CO2 around a plant increases? As the rate of photosynthesis increases and it reaches a
plateau, the lights intensity or CO2 concentration increases. When
it comes below a certain temperature, the rate of photosynthesis
increases as temperature increases. Above the temperature the rate
of photosynthesis decreases as temperature increases. In other words the rate of photosynthesis goes up until no more
as the light brightens or CO2 concentration goes up. When the
temperature falls below the line, the rate of photosynthesis goes
up as the temp goes up.

 this however happens to to a certain maximum
level of carbon dioxide beyond which the rate remains constant. 001
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Does carbon dioxide affect photosynthesis? Yes, increasing the concentration of carbon dioxide will
increase the rate of photosynthesis. What affect the rate of photosynthesis? Variables that affect the rate of photosynthesis is: -Light Intensity
-Carbon Dioxide concentration
-Temperature
What factors could affect the rate of photosynthesis? Water, light, Carbon Dioxide, and temperature. How does carbon dioxide concentration affect photosynthesis? Carbon dioxide is an essential reactant for photosynthesis to
occur.

this however happens to to a certain maximum
level of carbon dioxide beyond which the rate remains constant. 001
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Does carbon dioxide affect photosynthesis? Yes, increasing the concentration of carbon dioxide will
increase the rate of photosynthesis. What affect the rate of photosynthesis? Variables that affect the rate of photosynthesis is: -Light Intensity
-Carbon Dioxide concentration
-Temperature
What factors could affect the rate of photosynthesis? Water, light, Carbon Dioxide, and temperature. How does carbon dioxide concentration affect photosynthesis? Carbon dioxide is an essential reactant for photosynthesis to
occur.

 Light intensity, ambient temperature, and carbon dioxide
concentration affect a plant's rate of photosynthesis and therefore
its ability to grow. What environmental factors does not affect the rate of photosynthesis? Everything except; Light intensity, Carbon Dioxide
concentration, Temperature
How does temperature affect the rate of photoysistes? The higher the temperature, the higher the rate of
photosynthesis. Photosynthesis is affected by more than one factor. The other factors are light and carbon dioxide. What happens to the rate of photosynthesis if you increase the level of carbon dioxide? the more you give plant carbon dioxide it will probably be able
to photosynthesis faster. In bright sunlight the concentration of carbon dioxide in the air can limit the rate of photosynthesis?

Light intensity, ambient temperature, and carbon dioxide
concentration affect a plant's rate of photosynthesis and therefore
its ability to grow. What environmental factors does not affect the rate of photosynthesis? Everything except; Light intensity, Carbon Dioxide
concentration, Temperature
How does temperature affect the rate of photoysistes? The higher the temperature, the higher the rate of
photosynthesis. Photosynthesis is affected by more than one factor. The other factors are light and carbon dioxide. What happens to the rate of photosynthesis if you increase the level of carbon dioxide? the more you give plant carbon dioxide it will probably be able
to photosynthesis faster. In bright sunlight the concentration of carbon dioxide in the air can limit the rate of photosynthesis?

Limiting factors of photosynthesis - Photosynthesis - National 5 Biology Revision - BBC Bitesize Limiting factors of photosynthesis
Photosynthesis
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Limiting factors of photosynthesis
Light intensity
Carbon dioxide concentration
Temperature
 Light intensity
Carbon dioxide concentration
Temperature
It is useful to be able to interpret a graph like the example below. This graph shows the effect of light intensity on the rate of photosynthesis at two different carbon dioxide concentrations. Light intensity is limiting the rate of photosynthesis at light intensities of 0 to 3.75 units. As light intensity is increased the rate of photosynthesis increases. At light intensities of 3.75 to 5.5, a carbon dioxide concentration of 0.03 per cent is insufficient and limits the rate of photosynthesis. A carbon dioxide concentration of 0.1 per cent is sufficient and the rate of photosynthesis continues to increase as light intensity increases. At light intensities of 5.5 units and above, a carbon dioxide concentration of 0.1 per cent is limiting and the rate of photosynthesis does not increase even when light intensity is increased. Light intensity is not limiting the rate of photosynthesis at light intensities of five to eight units. As light intensity is increased the rate of photosynthesis remains the same. At light intensities of five to eight units carbon dioxide concentration is limiting the rate of photosynthesis.

Limiting factors of photosynthesis - Photosynthesis - National 5 Biology Revision - BBC Bitesize

Limiting factors of photosynthesis
Photosynthesis
Add to My Bitesize
Limiting factors of photosynthesis
Light intensity
Carbon dioxide concentration
Temperature

Light intensity
Carbon dioxide concentration
Temperature
It is useful to be able to interpret a graph like the example below. This graph shows the effect of light intensity on the rate of photosynthesis at two different carbon dioxide concentrations. Light intensity is limiting the rate of photosynthesis at light intensities of 0 to 3.75 units. As light intensity is increased the rate of photosynthesis increases. At light intensities of 3.75 to 5.5, a carbon dioxide concentration of 0.03 per cent is insufficient and limits the rate of photosynthesis. A carbon dioxide concentration of 0.1 per cent is sufficient and the rate of photosynthesis continues to increase as light intensity increases. At light intensities of 5.5 units and above, a carbon dioxide concentration of 0.1 per cent is limiting and the rate of photosynthesis does not increase even when light intensity is increased. Light intensity is not limiting the rate of photosynthesis at light intensities of five to eight units. As light intensity is increased the rate of photosynthesis remains the same. At light intensities of five to eight units carbon dioxide concentration is limiting the rate of photosynthesis.

Importance of Light in Photosynthesis (Theory) : Class 10 : Biology : Amrita Online Lab Objective
Objective
The Theory
The Process of Photosynthesis
Where does Photosynthesis occur?
Role of the colour of light during Photosynthesis
Factors affecting Photosynthesis
Learning Outcomes
 Here are some of the factors affecting photosynthesis. Light Intensity: An increased light intensity leads to a high rate of photosynthesis and a low light intensity would mean low rate of photosynthesis. Concentration of CO 2: Higher carbon dioxide concentration increases the rate of photosynthesis. Normally the carbon dioxide concentration of 0.03 to 0.04 percent is sufficient for photosynthesis. Temperature: An efficient photosynthesis requires an optimum temperature range between 25 to 35 o C.
Water: Water is an essential factor for photosynthesis. The lack of water also leads to a problem for carbon dioxide intake.

Importance of Light in Photosynthesis (Theory) : Class 10 : Biology : Amrita Online Lab

Objective
Objective
The Theory
The Process of Photosynthesis
Where does Photosynthesis occur?
Role of the colour of light during Photosynthesis
Factors affecting Photosynthesis
Learning Outcomes

Here are some of the factors affecting photosynthesis. Light Intensity: An increased light intensity leads to a high rate of photosynthesis and a low light intensity would mean low rate of photosynthesis. Concentration of CO 2: Higher carbon dioxide concentration increases the rate of photosynthesis. Normally the carbon dioxide concentration of 0.03 to 0.04 percent is sufficient for photosynthesis. Temperature: An efficient photosynthesis requires an optimum temperature range between 25 to 35 o C.
Water: Water is an essential factor for photosynthesis. The lack of water also leads to a problem for carbon dioxide intake.

 Variables that affect the rate of photosynthesis is: -Light Intensity
-Carbon Dioxide concentration
-Temperature
What factors could affect the rate of photosynthesis? Water, light, Carbon Dioxide, and temperature. How does carbon dioxide concentration affect photosynthesis? Carbon dioxide is an essential reactant for photosynthesis to
occur. If there is a higher concentration of carbon dioxide, then
the rate of photosynthesis will increase, and vise versa. If the
concentration of carbon dioxide decreases, then the rate at which a
plant photosynthesizes will be slower. Resources: I'm an advanced bio student, and we conducted an experiment to
test this. Hope this helps (:
What are 3 factors that affect the rate of photosynthesis?

Variables that affect the rate of photosynthesis is: -Light Intensity
-Carbon Dioxide concentration
-Temperature
What factors could affect the rate of photosynthesis? Water, light, Carbon Dioxide, and temperature. How does carbon dioxide concentration affect photosynthesis? Carbon dioxide is an essential reactant for photosynthesis to
occur. If there is a higher concentration of carbon dioxide, then
the rate of photosynthesis will increase, and vise versa. If the
concentration of carbon dioxide decreases, then the rate at which a
plant photosynthesizes will be slower. Resources: I'm an advanced bio student, and we conducted an experiment to
test this. Hope this helps (:
What are 3 factors that affect the rate of photosynthesis?

Limiting factors - Photosynthesis and plants (CCEA) - GCSE Biology (Single Science) Revision - CCEA - BBC Bitesize Limiting factors
Photosynthesis and plants (CCEA)
Add to My Bitesize
Limiting factors
Light
Carbon dioxide
Temperature
Commercial growth
 Light
As light intensity increases so too does the rate of photosynthesis until a certain point where the graph levels off. At lower light intensities, light is the limiting factor because an increase in light causes an increase in photosynthesis. At higher light intensities (plateau of graph), further increasing the light intensity does not increase the rate of photosynthesis meaning that another factor is limiting photosynthesis. On a hot day, photosynthesis happens at a higher rate when compared to the cooler day, showing that temperature has an effect and is the limiting factor on a cooler day. An increased level of carbon dioxide leads to a higher rate of photosynthesis when compared to the lower carbon dioxide level. This shows that the carbon dioxide level has an effect and is now limiting the rate of photosynthesis. Carbon dioxide
As carbon dioxide concentrations increase, so too does the rate of photosynthesis until a certain point where the graph levels off. At lower carbon dioxide concentrations carbon dioxide is the limiting factor because an increase in carbon dioxide causes an increase in photosynthesis. At higher carbon dioxide concentrations (plateau of graph), further increasing the carbon dioxide concentration does not increase the rate of photosynthesis meaning another factor is limiting photosynthesis. Temperature
Temperature affects all reactions because an increase in temperature causes the molecules involved to gain kinetic energy and therefore react more frequently.

Limiting factors - Photosynthesis and plants (CCEA) - GCSE Biology (Single Science) Revision - CCEA - BBC Bitesize

Limiting factors
Photosynthesis and plants (CCEA)
Add to My Bitesize
Limiting factors
Light
Carbon dioxide
Temperature
Commercial growth

Limiting factors - Photosynthesis and plants (CCEA) - GCSE Combined Science Revision - CCEA Double Award - BBC Bitesize Limiting factors
Photosynthesis and plants (CCEA)
Add to My Bitesize
Limiting factors
Light
Carbon dioxide
Temperature
Commercial growth
 Light
As light intensity increases so too does the rate of photosynthesis until a certain point where the graph levels off. At lower light intensities, light is the limiting factor because an increase in light causes an increase in photosynthesis. At higher light intensities (plateau of graph), further increasing the light intensity does not increase the rate of photosynthesis meaning that another factor is limiting photosynthesis. On a hot day, photosynthesis happens at a higher rate when compared to the cooler day, showing that temperature has an effect and is the limiting factor on a cooler day. An increased level of carbon dioxide leads to a higher rate of photosynthesis when compared to the lower carbon dioxide level. This shows that the carbon dioxide level has an effect and is now limiting the rate of photosynthesis. Carbon dioxide
As carbon dioxide concentrations increase, so too does the rate of photosynthesis until a certain point where the graph levels off. At lower carbon dioxide concentrations carbon dioxide is the limiting factor because an increase in carbon dioxide causes an increase in photosynthesis. At higher carbon dioxide concentrations (plateau of graph), further increasing the carbon dioxide concentration does not increase the rate of photosynthesis meaning another factor is limiting photosynthesis. Temperature
Temperature affects all reactions because an increase in temperature causes the molecules involved to gain kinetic energy and therefore react more frequently.

Limiting factors - Photosynthesis and plants (CCEA) - GCSE Combined Science Revision - CCEA Double Award - BBC Bitesize

What are some factors that may slow down or speed up the rate of photosynthesis - Science Mathematics What are some factors that may slow down or speed up the rate of photosynthesis
What are some factors that may slow down or speed up the rate of photosynthesis The higher the intensity the faster the rate up to the point that the metabolic pathways are saturated. 2. Color of light: Violet, blue and a portion of red light produce the highest rate. Other colors are poorly absorbed and would produce very little photosynthesis. 3. Concentration of carbon dioxide: The higher the concentration the faster the rate up to the point of saturation. 4. Temperature:

What are some factors that may slow down or speed up the rate of photosynthesis - Science Mathematics

What are some factors that may slow down or speed up the rate of photosynthesis
What are some factors that may slow down or speed up the rate of photosynthesis

The higher the intensity the faster the rate up to the point that the metabolic pathways are saturated. 2. Color of light: Violet, blue and a portion of red light produce the highest rate. Other colors are poorly absorbed and would produce very little photosynthesis. 3. Concentration of carbon dioxide: The higher the concentration the faster the rate up to the point of saturation. 4. Temperature:

Limiting factors of photosynthesis - Photosynthesis - National 5 Biology Revision - BBC Bitesize Limiting factors of photosynthesis
Photosynthesis
Add to My Bitesize
Limiting factors of photosynthesis
Light intensity
Carbon dioxide concentration
Temperature
 A carbon dioxide concentration of 0.1 per cent is sufficient and the rate of photosynthesis continues to increase as light intensity increases. At light intensities of 5.5 units and above, a carbon dioxide concentration of 0.1 per cent is limiting and the rate of photosynthesis does not increase even when light intensity is increased. Light intensity is not limiting the rate of photosynthesis at light intensities of five to eight units. As light intensity is increased the rate of photosynthesis remains the same. At light intensities of five to eight units carbon dioxide concentration is limiting the rate of photosynthesis. If the light intensity is kept the same, and the carbon dioxide concentration is increased from 0.03 per cent to 0.10 per cent then the rate of photosynthesis increases. previous
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A carbon dioxide concentration of 0.1 per cent is sufficient and the rate of photosynthesis continues to increase as light intensity increases. At light intensities of 5.5 units and above, a carbon dioxide concentration of 0.1 per cent is limiting and the rate of photosynthesis does not increase even when light intensity is increased. Light intensity is not limiting the rate of photosynthesis at light intensities of five to eight units. As light intensity is increased the rate of photosynthesis remains the same. At light intensities of five to eight units carbon dioxide concentration is limiting the rate of photosynthesis. If the light intensity is kept the same, and the carbon dioxide concentration is increased from 0.03 per cent to 0.10 per cent then the rate of photosynthesis increases. previous
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How Plants Make Food: Photosynthesis And The Transformation From Sunlight To Sugar – Home for the Harvest How Plants Make Food: Photosynthesis And The Transformation From Sunlight To Sugar
How Plants Make Food: Photosynthesis And The Transformation From Sunlight To Sugar
How Plants Make Food
Where Photosynthesis Occurs
The Process of Photosynthesis
Factors Affecting Photosynthesis
1. Light Intensity
2. Concentration of Carbon Dioxide
3. Ambient Temperature
4. Water Availability
5. Air Pollution
How Plants Make Their Own Food
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Mary Jane Duford
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Factors Affecting Photosynthesis
The process of photosynthesis can be affected by a number of factors. These include: 1. Light Intensity
The amount of light reaching the plant’s leaf has a significant impact on the rate by which it creates food. In general, the higher the light intensity, the higher the rate of photosynthesis by plants. On the flip side, when light intensity is low, the rate of photosynthesis will also decline. This is why only certain plants can grow in shady environments, while others demand full sun. Further Reading: 24 Herbs to Grow in the Shade
2. Concentration of Carbon Dioxide
Carbon dioxide is a vital ingredient in the process of photosynthesis.

How Plants Make Food: Photosynthesis And The Transformation From Sunlight To Sugar – Home for the Harvest

How Plants Make Food: Photosynthesis And The Transformation From Sunlight To Sugar
How Plants Make Food: Photosynthesis And The Transformation From Sunlight To Sugar
How Plants Make Food
Where Photosynthesis Occurs
The Process of Photosynthesis
Factors Affecting Photosynthesis
1. Light Intensity
2. Concentration of Carbon Dioxide
3. Ambient Temperature
4. Water Availability
5. Air Pollution
How Plants Make Their Own Food
More Questions
Mary Jane Duford
Recent Posts
How To Grow Strawberries: A Quick Guide For Beginner Gardeners
Ivy Plant: How To Plant, Grow, And Care For Ivy Plants

Grow a Beautiful & Bountiful Garden, by Daryl Beyers
Factors Affecting Photosynthesis
The process of photosynthesis can be affected by a number of factors. These include: 1. Light Intensity
The amount of light reaching the plant’s leaf has a significant impact on the rate by which it creates food. In general, the higher the light intensity, the higher the rate of photosynthesis by plants. On the flip side, when light intensity is low, the rate of photosynthesis will also decline. This is why only certain plants can grow in shady environments, while others demand full sun. Further Reading: 24 Herbs to Grow in the Shade
2. Concentration of Carbon Dioxide
Carbon dioxide is a vital ingredient in the process of photosynthesis.

THE CONCEPT OF LIMITING FACTORS | Biology Boom THE CONCEPT OF LIMITING FACTORS
THE CONCEPT OF LIMITING FACTORS
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About The Author
 The rate of photosynthesis increased at the same light intensity. This shows that the carbon dioxide concentration determine the rate of photosynthesis. Thus carbon dioxide is the limiting factor. ----------------------------
----------------------------
2. Light as limiting factor: The rate of photosynthesis goes on increasing with an increase in the concentration of carbon dioxide. Finally, the supply of carbon dioxide reaches 5mg per hour. At this point the two factors have a maximum effect on photosynthesis. Now light intensity is just enough to utilize 5 mg. Further increase in the supply of carbon dioxide will have no effect on the rate of photosynthesis.

THE CONCEPT OF LIMITING FACTORS | Biology Boom

THE CONCEPT OF LIMITING FACTORS
THE CONCEPT OF LIMITING FACTORS
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The rate of photosynthesis increased at the same light intensity. This shows that the carbon dioxide concentration determine the rate of photosynthesis. Thus carbon dioxide is the limiting factor. ----------------------------
----------------------------
2. Light as limiting factor: The rate of photosynthesis goes on increasing with an increase in the concentration of carbon dioxide. Finally, the supply of carbon dioxide reaches 5mg per hour. At this point the two factors have a maximum effect on photosynthesis. Now light intensity is just enough to utilize 5 mg. Further increase in the supply of carbon dioxide will have no effect on the rate of photosynthesis.

IB Biology Notes - 3.8 Photosynthesis Photosynthesis
Photosynthesis
3.8.1 State that photosynthesis involves the conversion of light energy into chemical energy.
3.8.2 State that light from the Sun is composed of a range of wavelengths (colours).
3.8.3 State that chlorophyll is the main photosynthetic pigment.
3.8.4 Outline the differences in absorption of red, blue and green light by chlorophyll.
3.8.5 State that light energy is used to produce ATP, and to split water molecules (photolysis) to form oxygen and hydrogen.
3.8.6 State that ATP and hydrogen (derived from the photolysis of water) are used to fix carbon dioxide to make organic molecules.
3.8.7 Explain that the rate of photosynthesis can be measured directly by the production of oxygen or the uptake of carbon dioxide, or indirectly by an increase in biomass.
3.8.8 Outline the effects of temperature, light intensity and carbon dioxide concentration on the rate of photosynthesis.
 3.8.8 Outline the effects of temperature, light intensity and carbon dioxide concentration on the rate of photosynthesis. As temperature increases, the rate of photosynthesis increases more and more steeply until the optimum temperature is reached. If temperature keeps increasing above the optimum temperature then photosynthesis starts to decrease very rapidly. As light intensity increases so does photosynthesis until a certain point. At a high light intensities photosynthesis reaches a plateau and so does not increase any more. At low and medium light intensity the rate of photosynthesis is directly proportional to the light intensity. As the carbon dioxide concentration increases so does the rate of photosynthesis. There is no photosynthesis at very low levels of carbon dioxide and at high levels the rate reaches a plateau.

IB Biology Notes - 3.8 Photosynthesis

Photosynthesis
Photosynthesis
3.8.1 State that photosynthesis involves the conversion of light energy into chemical energy.
3.8.2 State that light from the Sun is composed of a range of wavelengths (colours).
3.8.3 State that chlorophyll is the main photosynthetic pigment.
3.8.4 Outline the differences in absorption of red, blue and green light by chlorophyll.
3.8.5 State that light energy is used to produce ATP, and to split water molecules (photolysis) to form oxygen and hydrogen.
3.8.6 State that ATP and hydrogen (derived from the photolysis of water) are used to fix carbon dioxide to make organic molecules.
3.8.7 Explain that the rate of photosynthesis can be measured directly by the production of oxygen or the uptake of carbon dioxide, or indirectly by an increase in biomass.
3.8.8 Outline the effects of temperature, light intensity and carbon dioxide concentration on the rate of photosynthesis.

3.8.8 Outline the effects of temperature, light intensity and carbon dioxide concentration on the rate of photosynthesis. As temperature increases, the rate of photosynthesis increases more and more steeply until the optimum temperature is reached. If temperature keeps increasing above the optimum temperature then photosynthesis starts to decrease very rapidly. As light intensity increases so does photosynthesis until a certain point. At a high light intensities photosynthesis reaches a plateau and so does not increase any more. At low and medium light intensity the rate of photosynthesis is directly proportional to the light intensity. As the carbon dioxide concentration increases so does the rate of photosynthesis. There is no photosynthesis at very low levels of carbon dioxide and at high levels the rate reaches a plateau.

Photosynthesis: Step by Step Guide (Experiments Included) Photosynthesis: Step by Step Guide (Experiments Included)
Photosynthesis: Step by Step Guide (Experiments Included)
What is Photosynthesis?
Ingredients for Photosynthesis
Why is photosynthesis important for life?
How Green Plants Make their Food
● Absorption of Light Energy
● Conversion of Light Energy to Chemical Energy
● Conversion of Carbon Dioxide to Glucose
Photosynthesis Chemical Reaction in Words
Chemical Reaction Formula for Photosynthesis
What does photosynthesis produce?
The Calvin Cycle
What happens to excess carbohydrates which are not utilized immediately?
Factors that affect the Rate of Photosynthesis
1. Light Intensity
2. Carbon Dioxide Concentration
3. Temperature
Energy Result of Photosynthesis
1. Light-Dependant Reactions
2. Dark Reactions
3. Respiration
How Do Plants Absorb Energy From the Sun?
Where Do Plants Get the Carbon Dioxide Needed?
Why Do Plants Produce Glucose?
1. Storage
2. Seed Formation and Flowering
3. Formation of other nutrients
4. Circadian Rhythms
How Do Plants Eat?
Role of Leaves in Photosynthesis
Role of Water in Photosynthesis
Do All Plants Photosynthesize?
Photosynthesis in Oceans
Science Experiments that Prove Photosynthesis in Plants
Experiment #1
Procedure:
Experiment #2
Procedure:
Experiment #3
Procedure:
The Conclusion
Angela
 In winter or colder areas, the rate decreases and falls to zero at night. Therefore, light intensity plays a vital role in the rate of photosynthesis. 2. Carbon Dioxide Concentration
Up to the maximum tolerance of carbon dioxide in plants, increasing the amount of exposure to gas maximizes the rate of photosynthesis. After that, increasing carbon dioxide concentration in the air will not affect the plants. This is because the plants can only intake a certain

Photosynthesis: Step by Step Guide (Experiments Included)

Photosynthesis: Step by Step Guide (Experiments Included)
Photosynthesis: Step by Step Guide (Experiments Included)
What is Photosynthesis?
Ingredients for Photosynthesis
Why is photosynthesis important for life?
How Green Plants Make their Food
● Absorption of Light Energy
● Conversion of Light Energy to Chemical Energy
● Conversion of Carbon Dioxide to Glucose
Photosynthesis Chemical Reaction in Words
Chemical Reaction Formula for Photosynthesis
What does photosynthesis produce?
The Calvin Cycle
What happens to excess carbohydrates which are not utilized immediately?
Factors that affect the Rate of Photosynthesis
1. Light Intensity
2. Carbon Dioxide Concentration
3. Temperature
Energy Result of Photosynthesis
1. Light-Dependant Reactions
2. Dark Reactions
3. Respiration
How Do Plants Absorb Energy From the Sun?
Where Do Plants Get the Carbon Dioxide Needed?
Why Do Plants Produce Glucose?
1. Storage
2. Seed Formation and Flowering
3. Formation of other nutrients
4. Circadian Rhythms
How Do Plants Eat?
Role of Leaves in Photosynthesis
Role of Water in Photosynthesis
Do All Plants Photosynthesize?
Photosynthesis in Oceans
Science Experiments that Prove Photosynthesis in Plants
Experiment #1
Procedure:
Experiment #2
Procedure:
Experiment #3
Procedure:
The Conclusion
Angela

In winter or colder areas, the rate decreases and falls to zero at night. Therefore, light intensity plays a vital role in the rate of photosynthesis. 2. Carbon Dioxide Concentration
Up to the maximum tolerance of carbon dioxide in plants, increasing the amount of exposure to gas maximizes the rate of photosynthesis. After that, increasing carbon dioxide concentration in the air will not affect the plants. This is because the plants can only intake a certain

How Carbon Dioxide Concentration Affects Photosynthetic Rate How Carbon Dioxide Concentration Affects Photosynthetic Rate
Click graph to see notes! How Carbon Dioxide Concentration Affects Photosynthetic Rate
[ Factors Affecting Photosynthetic Rate]
How Carbon Dioxide Concentration Affects Photosynthetic Rate
Click graph to see notes! As carbon dioxide concentration increases, the rate of photosynthesis increases. At high concentrations, the rate of photosynthesis begins to level out due to factors not related to carbon dioxide concentration. One reason might be that some of the enzymes of photosynthesis are working at their maximum rate. In general, carbon dioxide is found in low concentration in the atmosphere, and so atmospheric carbon dioxide levels may be a major limiting factor on photosynthesis when at low levels. Other Factors Affecting Photosynthetic Rate
[ Light Intensity] [ Temperature]
Slichter

How Carbon Dioxide Concentration Affects Photosynthetic Rate

How Carbon Dioxide Concentration Affects Photosynthetic Rate
Click graph to see notes!

How Carbon Dioxide Concentration Affects Photosynthetic Rate
[ Factors Affecting Photosynthetic Rate]
How Carbon Dioxide Concentration Affects Photosynthetic Rate
Click graph to see notes! As carbon dioxide concentration increases, the rate of photosynthesis increases. At high concentrations, the rate of photosynthesis begins to level out due to factors not related to carbon dioxide concentration. One reason might be that some of the enzymes of photosynthesis are working at their maximum rate. In general, carbon dioxide is found in low concentration in the atmosphere, and so atmospheric carbon dioxide levels may be a major limiting factor on photosynthesis when at low levels. Other Factors Affecting Photosynthetic Rate
[ Light Intensity] [ Temperature]
Slichter

Factors affecting photosynthesis - What happens during photosynthesis? - OCR 21C - GCSE Combined Science Revision - OCR 21st Century - BBC Bitesize Factors affecting photosynthesis
What happens during photosynthesis? - OCR 21C
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Factors affecting photosynthesis
Light intensity
Carbon dioxide concentration
Temperature
Chlorophyll
The compensation point
 Part of
Combined Science
Living together - Food and ecosystems
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Factors affecting photosynthesis
There are several ways of measuring the rate of photosynthesis in the laboratory. These include: the rate of oxygen output
the rate of carbon dioxide uptake
the rate of carbohydrate (glucose) production
These are not perfect methods as the plant will also be respiring, which will use up some oxygen and carbohydrate and increase carbon dioxide output. Several factors can affect the rate of photosynthesis: light intensity
carbon dioxide concentration
temperature
The amount of chlorophyll also affects the rate of photosynthesis: plants in lighting conditions unfavourable for photosynthesis synthesise more chlorophyll, to absorb the light required
the effects of some plant diseases affect the amount of chlorophyll, and therefore the ability of a plant to photosynthesise, such as downy mildew in grape vines
Light intensity
Without enough light, a plant cannot photosynthesise very quickly - even if there is plenty of water and carbon dioxide and a suitable temperature. Increasing the light intensity increases the rate of photosynthesis, until some other factor - a limiting factor - becomes in short supply. previous
next
previous
next
previous
next
previous
next
At very high light intensities, photosynthesis is slowed and then inhibited, but these light intensities do not occur in nature. Carbon dioxide concentration
Carbon dioxide – with water – is one of the reactants in photosynthesis. If the concentration of carbon dioxide is increased, the rate of photosynthesis will therefore increase.

Factors affecting photosynthesis - What happens during photosynthesis? - OCR 21C - GCSE Combined Science Revision - OCR 21st Century - BBC Bitesize

Factors affecting photosynthesis
What happens during photosynthesis? - OCR 21C
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Factors affecting photosynthesis
Light intensity
Carbon dioxide concentration
Temperature
Chlorophyll
The compensation point

Word Equation for Photosynthesis – Student Helper Word Equation for Photosynthesis
Word Equation for Photosynthesis
6 CO2 + 6 H2O → C6H12O6 + 6 O2
Chemical equation of photosynthesis
Carbon Dioxide + Water (+ Sunlight) → Glucose + Oxygen
6 CO2 + 6 H2O → C6H12O6 + 6 O2
Chemical compounds
Cells of the leaves
Parts of the Cell
Factors that limit photosynthesis
Intensity of Light
Concentration of Carbon Dioxide
Temperature
 the intensity of light, the concentration of carbon dioxide and temperature. Intensity of Light
When there is not enough light, a plant cannot carry out the process of photosynthesis efficiently, it does not matter that there is enough water and carbon dioxide in the environment. Therefore, increasing the intensity of the light will immediately increase the speed of the photosynthesis process. Concentration of Carbon Dioxide
In some particular cases the process of photosynthesis is restricted due to the amount of concentration of CO 2 in the air. Even if there is a lot of sunlight and water, a plant cannot carry out photosynthesis without there being enough carbon dioxide in the air. Temperature
Photosynthesis process depends on temperature, if the temperature is low, so the photosynthesis process becomes slow. In the same way, plants cannot carry out photosynthesis when the temperature is very high.

Word Equation for Photosynthesis – Student Helper

Word Equation for Photosynthesis
Word Equation for Photosynthesis
6 CO2 + 6 H2O → C6H12O6 + 6 O2
Chemical equation of photosynthesis
Carbon Dioxide + Water (+ Sunlight) → Glucose + Oxygen
6 CO2 + 6 H2O → C6H12O6 + 6 O2
Chemical compounds
Cells of the leaves
Parts of the Cell
Factors that limit photosynthesis
Intensity of Light
Concentration of Carbon Dioxide
Temperature

the intensity of light, the concentration of carbon dioxide and temperature. Intensity of Light
When there is not enough light, a plant cannot carry out the process of photosynthesis efficiently, it does not matter that there is enough water and carbon dioxide in the environment. Therefore, increasing the intensity of the light will immediately increase the speed of the photosynthesis process. Concentration of Carbon Dioxide
In some particular cases the process of photosynthesis is restricted due to the amount of concentration of CO 2 in the air. Even if there is a lot of sunlight and water, a plant cannot carry out photosynthesis without there being enough carbon dioxide in the air. Temperature
Photosynthesis process depends on temperature, if the temperature is low, so the photosynthesis process becomes slow. In the same way, plants cannot carry out photosynthesis when the temperature is very high.

10 Major Factors Affecting Photosynthesis 10 Major Factors Affecting Photosynthesis
10 Major Factors Affecting Photosynthesis
The following points highlight the ten major factors affecting photosynthesis. The factors are: 1. Light 2. Carbon-Dioxide 3. Water 4. Nutrient Supply 5. Temperature 6. Oxygen Concentration 7. Chemical Compounds 8. Chlorophyll Content 9. Leaf Anatomy 10. Protoplasmic Factors.
Factor # 1. Light:
Light Intensity:
Photo-Oxidation:
Light Quality:
Duration of Light Period:
Factor # 2. Carbon-Dioxide:
Carbon Dioxide Supply:
Absorption of Carbon Dioxide:
Carbon Dioxide Concentration:
Factor # 3. Water:
Factor # 4. Nutrient Supply:
Factor # 5. Temperature:
They are as follows:
Factor # 6. Oxygen Concentration:
Factor # 7. Chemical Compounds:
Factor # 8. Chlorophyll Content:
Factor # 9. Leaf Anatomy:
Factor # 10. Protoplasmic Factors:
 The walls of palisade and spongy parenchyma possess water. Carbon dioxide dissolves in water and ultimately passes through the walls in aqueous solution. Carbon Dioxide Concentration: If light intensity and temperature are favourable, the carbon dioxide of the atmosphere limits the rate of photosynthesis. The workers like Kreuslar (1887), Brown and Escombe (1902) and Pantanelli (1903) investigated that there is an increase in the rate of photosynthesis with an increase in the concentration of carbon dioxide at the lower levels of carbon dioxide concentrations. A decline in rate was observed in higher concentrations. Blackman and his co-workers claimed that after an optimum concentration is reached, the rate of photosynthesis remains constant over a wide range of carbon dioxide concentrations. ADVERTISEMENTS: It has been demonstrated experimentally that at usual temperature and light intensities, artificial increase of carbon dioxide up to a concentration of 0.5 per cent may give an increased rate of photosynthesis, but only for a limited period. It appears that the high level of carbon dioxide is injurious to plants.

10 Major Factors Affecting Photosynthesis

10 Major Factors Affecting Photosynthesis
10 Major Factors Affecting Photosynthesis
The following points highlight the ten major factors affecting photosynthesis. The factors are: 1. Light 2. Carbon-Dioxide 3. Water 4. Nutrient Supply 5. Temperature 6. Oxygen Concentration 7. Chemical Compounds 8. Chlorophyll Content 9. Leaf Anatomy 10. Protoplasmic Factors.
Factor # 1. Light:
Light Intensity:
Photo-Oxidation:
Light Quality:
Duration of Light Period:
Factor # 2. Carbon-Dioxide:
Carbon Dioxide Supply:
Absorption of Carbon Dioxide:
Carbon Dioxide Concentration:
Factor # 3. Water:
Factor # 4. Nutrient Supply:
Factor # 5. Temperature:
They are as follows:
Factor # 6. Oxygen Concentration:
Factor # 7. Chemical Compounds:
Factor # 8. Chlorophyll Content:
Factor # 9. Leaf Anatomy:
Factor # 10. Protoplasmic Factors:

The walls of palisade and spongy parenchyma possess water. Carbon dioxide dissolves in water and ultimately passes through the walls in aqueous solution. Carbon Dioxide Concentration: If light intensity and temperature are favourable, the carbon dioxide of the atmosphere limits the rate of photosynthesis. The workers like Kreuslar (1887), Brown and Escombe (1902) and Pantanelli (1903) investigated that there is an increase in the rate of photosynthesis with an increase in the concentration of carbon dioxide at the lower levels of carbon dioxide concentrations. A decline in rate was observed in higher concentrations. Blackman and his co-workers claimed that after an optimum concentration is reached, the rate of photosynthesis remains constant over a wide range of carbon dioxide concentrations. ADVERTISEMENTS: It has been demonstrated experimentally that at usual temperature and light intensities, artificial increase of carbon dioxide up to a concentration of 0.5 per cent may give an increased rate of photosynthesis, but only for a limited period. It appears that the high level of carbon dioxide is injurious to plants.

What Is Photosynthesis? Reaction’s Formula and Phases What Is Photosynthesis?
What Is Photosynthesis?
What Is the Chemical Reaction of Photosynthesis?
What Are the Phases of Photosynthesis?
Light-dependent Reactions
Light-independent Reactions
Carbon Fixation
Calvin Cycle
Elements Involved in Photosynthesis
Does Sunlight Influence the Color of a Plant?
What Influence Does Photosynthesis Have on Climate Change?
 Carbon dioxide concentration: the efficacy rises in the same way that the CO 2 in the air. Oxygen concentration: the higher the oxygen concentration in the air, the lower the photosynthetic performance. This variation is due to photorespiration processes. Luminous intensity: the higher the luminous intensity, the higher the performance, up to exceeding certain limits. Once the light exceeds these limits, irreversible photooxidation of photosynthetic pigments occurs. The lighting time: some species have higher photosynthetic production than the number of hours of light.

What Is Photosynthesis? Reaction’s Formula and Phases

What Is Photosynthesis?
What Is Photosynthesis?
What Is the Chemical Reaction of Photosynthesis?
What Are the Phases of Photosynthesis?
Light-dependent Reactions
Light-independent Reactions
Carbon Fixation
Calvin Cycle
Elements Involved in Photosynthesis
Does Sunlight Influence the Color of a Plant?
What Influence Does Photosynthesis Have on Climate Change?

Carbon dioxide concentration: the efficacy rises in the same way that the CO 2 in the air. Oxygen concentration: the higher the oxygen concentration in the air, the lower the photosynthetic performance. This variation is due to photorespiration processes. Luminous intensity: the higher the luminous intensity, the higher the performance, up to exceeding certain limits. Once the light exceeds these limits, irreversible photooxidation of photosynthetic pigments occurs. The lighting time: some species have higher photosynthetic production than the number of hours of light.

Factors affecting photosynthesis - Photosynthesis - OCR Gateway - GCSE Combined Science Revision - OCR Gateway - BBC Bitesize Factors affecting photosynthesis
Photosynthesis
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Factors affecting photosynthesis
Light intensity
Carbon dioxide concentration
Temperature
Chlorophyll
The compensation point
 the rate of oxygen output
the rate of carbon dioxide uptake
the rate of carbohydrate production
These are not perfect methods as the plant will also be respiring, which will use up some oxygen and carbohydrate and increase carbon dioxide output. Several factors can affect the rate of photosynthesis: light intensity
carbon dioxide concentration
temperature
The amount of chlorophyll also affects the rate of photosynthesis: plants in lighting conditions unfavourable for photosynthesis may synthesise more chlorophyll, to absorb the light required
the effects of some plant diseases affect the amount of chlorophyll, and therefore the ability of a plant to photosynthesise
Light intensity
Without enough light, a plant cannot photosynthesise very quickly - even if there is plenty of water and carbon dioxide and a suitable temperature. Increasing the light intensity increases the rate of photosynthesis , until some other factor - a limiting factor - becomes in short supply. previous
next
previous
next
At low light intensities the increase in the rate of photosynthesis is linear
previous
next
At some point a factor becomes limiting. For instance, if carbon dioxide becomes the limiting factor the supply of carbon dioxide is not sufficient to keep pace with the increasing rate of reaction. previous
next
Any additional increase in light intensity will not increase the rate of reaction any further. At very high light intensities, photosynthesis is slowed and then inhibited, but these light intensities do not occur in nature. Carbon dioxide concentration
Carbon dioxide - with water - is one of the reactants in photosynthesis.

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Factors affecting photosynthesis
Photosynthesis
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Factors affecting photosynthesis
Light intensity
Carbon dioxide concentration
Temperature
Chlorophyll
The compensation point

What are some factors that may slow down or speed up the rate of photosynthesis - Science Mathematics What are some factors that may slow down or speed up the rate of photosynthesis
What are some factors that may slow down or speed up the rate of photosynthesis Other colors are poorly absorbed and would produce very little photosynthesis.3.Concentration of carbon dioxide: The higher the concentration the faster the rate up to the point of saturation.4.Temperature: The higher the temperature the faster the rate up to the point that heat damages the enzymes and stops the processes.......
Explain how each will do so. -
1. Intensity of sunlight. The higher the intensity the faster the rate up to the point that the metabolic pathways are saturated. 2. Color of light: Violet, blue and a portion of red light produce the highest rate. Other colors are poorly absorbed and would produce very little photosynthesis.

Other colors are poorly absorbed and would produce very little photosynthesis.3.Concentration of carbon dioxide: The higher the concentration the faster the rate up to the point of saturation.4.Temperature: The higher the temperature the faster the rate up to the point that heat damages the enzymes and stops the processes.......
Explain how each will do so. -
1. Intensity of sunlight. The higher the intensity the faster the rate up to the point that the metabolic pathways are saturated. 2. Color of light: Violet, blue and a portion of red light produce the highest rate. Other colors are poorly absorbed and would produce very little photosynthesis.

Factors affecting photosynthesis - light intensity - Photosynthesis - Edexcel - GCSE Biology (Single Science) Revision - Edexcel - BBC Bitesize Factors affecting photosynthesis - light intensity
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Green plants and algae use light energy to make glucose and oxygen from carbon dioxide and water. Temperature, carbon dioxide concentration and light intensity can affect the rate of photosynthesis. Part of
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Plant structures and their functions
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Factors affecting photosynthesis - light intensity
There are several ways of measuring the rate of photosynthesis in the lab. These include: the rate of oxygen production (number of bubbles or volume of oxygen gas given off in a set time)
the rate of carbon dioxide uptake
the rate of glucose production
Several factors can affect the rate of photosynthesis: light intensity
carbon dioxide concentration
temperature
Light intensity
Without enough light, a plant cannot photosynthesise very quickly - even if there is plenty of water and carbon dioxide. Increasing the light intensity increases the rate of photosynthesis, until some other factor - a limiting factor - becomes in short supply. previous
next
previous
next
previous
next
previous
next
The rate of photosynthesis is directly proportional to the light intensity until another factor becomes limiting. At very high light intensities, photosynthesis is slowed, but these light intensities do not occur in nature. previous
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Photosynthesis: Step by Step Guide (Experiments Included) Photosynthesis: Step by Step Guide (Experiments Included)
Photosynthesis: Step by Step Guide (Experiments Included)
What is Photosynthesis?
Ingredients for Photosynthesis
Why is photosynthesis important for life?
How Green Plants Make their Food
● Absorption of Light Energy
● Conversion of Light Energy to Chemical Energy
● Conversion of Carbon Dioxide to Glucose
Photosynthesis Chemical Reaction in Words
Chemical Reaction Formula for Photosynthesis
What does photosynthesis produce?
The Calvin Cycle
What happens to excess carbohydrates which are not utilized immediately?
Factors that affect the Rate of Photosynthesis
1. Light Intensity
2. Carbon Dioxide Concentration
3. Temperature
Energy Result of Photosynthesis
1. Light-Dependant Reactions
2. Dark Reactions
3. Respiration
How Do Plants Absorb Energy From the Sun?
Where Do Plants Get the Carbon Dioxide Needed?
Why Do Plants Produce Glucose?
1. Storage
2. Seed Formation and Flowering
3. Formation of other nutrients
4. Circadian Rhythms
How Do Plants Eat?
Role of Leaves in Photosynthesis
Role of Water in Photosynthesis
Do All Plants Photosynthesize?
Photosynthesis in Oceans
Science Experiments that Prove Photosynthesis in Plants
Experiment #1
Procedure:
Experiment #2
Procedure:
Experiment #3
Procedure:
The Conclusion
Angela
 They include: 1. Light Intensity
If the light energy provided to plants is too low, the plants cannot photosynthesize properly. At the optimum amount of sunlight, the plant makes the food faster. However, the speed slows down again if the light energy given increases above the plant’s maximum tolerance level. In winter or colder areas, the rate decreases and falls to zero at night. Therefore, light intensity plays a vital role in the rate of photosynthesis. 2. Carbon Dioxide Concentration
Up to the maximum tolerance of carbon dioxide in plants, increasing the amount of exposure to gas maximizes the rate of photosynthesis. After that, increasing carbon dioxide concentration in the air will not affect the plants.

They include: 1. Light Intensity
If the light energy provided to plants is too low, the plants cannot photosynthesize properly. At the optimum amount of sunlight, the plant makes the food faster. However, the speed slows down again if the light energy given increases above the plant’s maximum tolerance level. In winter or colder areas, the rate decreases and falls to zero at night. Therefore, light intensity plays a vital role in the rate of photosynthesis. 2. Carbon Dioxide Concentration
Up to the maximum tolerance of carbon dioxide in plants, increasing the amount of exposure to gas maximizes the rate of photosynthesis. After that, increasing carbon dioxide concentration in the air will not affect the plants.

How Plants Make Food: Photosynthesis And The Transformation From Sunlight To Sugar – Home for the Harvest How Plants Make Food: Photosynthesis And The Transformation From Sunlight To Sugar
How Plants Make Food: Photosynthesis And The Transformation From Sunlight To Sugar
How Plants Make Food
Where Photosynthesis Occurs
The Process of Photosynthesis
Factors Affecting Photosynthesis
1. Light Intensity
2. Concentration of Carbon Dioxide
3. Ambient Temperature
4. Water Availability
5. Air Pollution
How Plants Make Their Own Food
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 On the flip side, when light intensity is low, the rate of photosynthesis will also decline. This is why only certain plants can grow in shady environments, while others demand full sun. Further Reading: 24 Herbs to Grow in the Shade
2. Concentration of Carbon Dioxide
Carbon dioxide is a vital ingredient in the process of photosynthesis. Therefore, if the concentration of CO2 is high, the rate of photosynthesis also increases proportionally. Under normal air-quality circumstances, the concentration of carbon dioxide ranges from 300 to 400 ppm. If the concentration exceeds the range, photosynthesis increases significantly. The reverse is also true in a CO2-depleted environment. 3.

On the flip side, when light intensity is low, the rate of photosynthesis will also decline. This is why only certain plants can grow in shady environments, while others demand full sun. Further Reading: 24 Herbs to Grow in the Shade
2. Concentration of Carbon Dioxide
Carbon dioxide is a vital ingredient in the process of photosynthesis. Therefore, if the concentration of CO2 is high, the rate of photosynthesis also increases proportionally. Under normal air-quality circumstances, the concentration of carbon dioxide ranges from 300 to 400 ppm. If the concentration exceeds the range, photosynthesis increases significantly. The reverse is also true in a CO2-depleted environment. 3.

Investigating the Factors that Affect the Rate of... | 123 Help Me Investigating the Factors that Affect the Rate of Photosynthesis
Investigating the Factors that Affect the Rate of Photosynthesis · Light intensity- if the light is brighter, then the rate of
photosynthesis increases and visa versa. · Water supply- if a plant cannot absorb enough water, then the rate
of photosynthesis decreases. · Carbon dioxide concentration- if the percentage of carbon dioxide in
the atmosphere increases, so does the rate of photosynthesis. · Temperature- if the temperature increases, then the rate of
photosynthesis also increases, (however, temperatures above 40OC can
damage a plant and photosynthesis stops because the chlorophyll gets
too hot). The factor I will be investigating is light intensity; how it affects
the rate of photosynthesis. The factors I will be keeping constant are: · Water supply- by using same millimetre of water each time. · Temperature- by using a thermometer to make sure the water is at the
temperature each time. · Carbon dioxide- by not adding any thing in the water which increase
the carbon dioxide level, such as Hydrogen carbonate.

Investigating the Factors that Affect the Rate of... | 123 Help Me

Investigating the Factors that Affect the Rate of Photosynthesis
Investigating the Factors that Affect the Rate of Photosynthesis

· Light intensity- if the light is brighter, then the rate of
photosynthesis increases and visa versa. · Water supply- if a plant cannot absorb enough water, then the rate
of photosynthesis decreases. · Carbon dioxide concentration- if the percentage of carbon dioxide in
the atmosphere increases, so does the rate of photosynthesis. · Temperature- if the temperature increases, then the rate of
photosynthesis also increases, (however, temperatures above 40OC can
damage a plant and photosynthesis stops because the chlorophyll gets
too hot). The factor I will be investigating is light intensity; how it affects
the rate of photosynthesis. The factors I will be keeping constant are: · Water supply- by using same millimetre of water each time. · Temperature- by using a thermometer to make sure the water is at the
temperature each time. · Carbon dioxide- by not adding any thing in the water which increase
the carbon dioxide level, such as Hydrogen carbonate.

What is Photosynthesis | Definition from Seneca Learning Photosynthesis
Photosynthesis
The Rate of Photosynthesis
Want to learn more about Photosynthesis?
 What is Photosynthesis | Definition from Seneca Learning
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Photosynthesis
Photosynthesis takes place inside chloroplasts found in plants and algae. The reaction is endothermic, meaning that it requires energy. The source of this energy is sunlight, which is trapped by a chemical called chlorophyll inside chloroplasts in plant cells. During photosynthesis, carbon dioxide reacts with water to produce glucose and oxygen. The Rate of Photosynthesis
The four key factors affecting the rate of photosynthesis are: Chlorophyll concentration - High chlorophyll concentration gives a high rate of photosynthesis. Light intensity - Increasing light intensity increases the rate of photosynthesis because more energy is provided. However, if the light intensity is increased above a certain threshold, the rate of photosynthesis will not increase because another factor (such as temperature) is limiting the rate of the reaction. Carbon dioxide concentration - Increasing the carbon dioxide concentration increases the rate of photosynthesis because carbon dioxide is a reactant in photosynthesis. However, above a certain threshold, further increases in the carbon dioxide concentration do not increase the rate of photosynthesis because another factor (such as light intensity) is limiting the rate of reaction.

What is Photosynthesis | Definition from Seneca Learning

Photosynthesis
Photosynthesis
The Rate of Photosynthesis
Want to learn more about Photosynthesis?

What is Photosynthesis | Definition from Seneca Learning
Back
Photosynthesis
Photosynthesis takes place inside chloroplasts found in plants and algae. The reaction is endothermic, meaning that it requires energy. The source of this energy is sunlight, which is trapped by a chemical called chlorophyll inside chloroplasts in plant cells. During photosynthesis, carbon dioxide reacts with water to produce glucose and oxygen. The Rate of Photosynthesis
The four key factors affecting the rate of photosynthesis are: Chlorophyll concentration - High chlorophyll concentration gives a high rate of photosynthesis. Light intensity - Increasing light intensity increases the rate of photosynthesis because more energy is provided. However, if the light intensity is increased above a certain threshold, the rate of photosynthesis will not increase because another factor (such as temperature) is limiting the rate of the reaction. Carbon dioxide concentration - Increasing the carbon dioxide concentration increases the rate of photosynthesis because carbon dioxide is a reactant in photosynthesis. However, above a certain threshold, further increases in the carbon dioxide concentration do not increase the rate of photosynthesis because another factor (such as light intensity) is limiting the rate of reaction.

10 Major Factors Affecting Photosynthesis 10 Major Factors Affecting Photosynthesis
10 Major Factors Affecting Photosynthesis
The following points highlight the ten major factors affecting photosynthesis. The factors are: 1. Light 2. Carbon-Dioxide 3. Water 4. Nutrient Supply 5. Temperature 6. Oxygen Concentration 7. Chemical Compounds 8. Chlorophyll Content 9. Leaf Anatomy 10. Protoplasmic Factors.
Factor # 1. Light:
Light Intensity:
Photo-Oxidation:
Light Quality:
Duration of Light Period:
Factor # 2. Carbon-Dioxide:
Carbon Dioxide Supply:
Absorption of Carbon Dioxide:
Carbon Dioxide Concentration:
Factor # 3. Water:
Factor # 4. Nutrient Supply:
Factor # 5. Temperature:
They are as follows:
Factor # 6. Oxygen Concentration:
Factor # 7. Chemical Compounds:
Factor # 8. Chlorophyll Content:
Factor # 9. Leaf Anatomy:
Factor # 10. Protoplasmic Factors:
 Light Intensity: There may be a direct relationship between the rate of photosynthesis and the intensity of light, provided that no other factor is limiting. For example, on bright sunny days the carbon dioxide concentration of the atmosphere is usually the limiting factor, not light intensity. However, on cloudy days light may be the limiting factor. Heinicke and Childers (1937) have found that the rate of photosynthesis steadily increased with light intensity up to about full sunlight even through saturation intensity for a single exposed leaf would be sufficiently lower. The need for higher light intensities for maximum photosynthesis of an entire tree is due to partial illumination of the inner leaves. ADVERTISEMENTS: Both quality and intensity of light influence photosynthesis. Light between wavelength of 400 nm and 700 nm is most effective, for photosynthesis. This light is called photosynthetically active radiation (PAR).

Light Intensity: There may be a direct relationship between the rate of photosynthesis and the intensity of light, provided that no other factor is limiting. For example, on bright sunny days the carbon dioxide concentration of the atmosphere is usually the limiting factor, not light intensity. However, on cloudy days light may be the limiting factor. Heinicke and Childers (1937) have found that the rate of photosynthesis steadily increased with light intensity up to about full sunlight even through saturation intensity for a single exposed leaf would be sufficiently lower. The need for higher light intensities for maximum photosynthesis of an entire tree is due to partial illumination of the inner leaves. ADVERTISEMENTS: Both quality and intensity of light influence photosynthesis. Light between wavelength of 400 nm and 700 nm is most effective, for photosynthesis. This light is called photosynthetically active radiation (PAR).

THE CONCEPT OF LIMITING FACTORS | Biology Boom THE CONCEPT OF LIMITING FACTORS
THE CONCEPT OF LIMITING FACTORS
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About The Author
 If only I mg of the gas enters the leaf per hour, photosynthesis goes on at a certain rate. In this case the increase of intensity of light does not increase in the photosynthetic rate. The light is already present in excess. It is sufficient to utilize I mg of carbon dioxide per hour. He increased the supply of carbon dioxide to 2 mg per hour. The rate of photosynthesis increased at the same light intensity. This shows that the carbon dioxide concentration determine the rate of photosynthesis. Thus carbon dioxide is the limiting factor. ----------------------------
----------------------------
2. Light as limiting factor:

If only I mg of the gas enters the leaf per hour, photosynthesis goes on at a certain rate. In this case the increase of intensity of light does not increase in the photosynthetic rate. The light is already present in excess. It is sufficient to utilize I mg of carbon dioxide per hour. He increased the supply of carbon dioxide to 2 mg per hour. The rate of photosynthesis increased at the same light intensity. This shows that the carbon dioxide concentration determine the rate of photosynthesis. Thus carbon dioxide is the limiting factor. ----------------------------
----------------------------
2. Light as limiting factor:

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 Carbon fixation occurs. 3-PGA is reduced. RuBP is regenerated. Which is the best hypothesis for the scientific question “How does light intensity affect the rate of photosynthesis?” Light intensity, CO2 concentration, and temperature are factors that determine the rate of photosynthesis. Light intensity has no effect on the rate of photosynthesis. If the distance between the source of light and the plant is increased, the rate of photosynthesis will decrease. Light intensity has an impact on the rate of photosynthesis. Fiona wants to use the scientific method to answer the question “Do oxygen levels in the air affect rates of photosynthesis?” She reads about photosynthesis in her biology book and is ready to carry out the next step.

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Carbon fixation occurs. 3-PGA is reduced. RuBP is regenerated. Which is the best hypothesis for the scientific question “How does light intensity affect the rate of photosynthesis?” Light intensity, CO2 concentration, and temperature are factors that determine the rate of photosynthesis. Light intensity has no effect on the rate of photosynthesis. If the distance between the source of light and the plant is increased, the rate of photosynthesis will decrease. Light intensity has an impact on the rate of photosynthesis. Fiona wants to use the scientific method to answer the question “Do oxygen levels in the air affect rates of photosynthesis?” She reads about photosynthesis in her biology book and is ready to carry out the next step.

What are some factors that may slow down or speed up the rate of photosynthesis - Science Mathematics What are some factors that may slow down or speed up the rate of photosynthesis
What are some factors that may slow down or speed up the rate of photosynthesis The higher the intensity the faster the rate up to the point that the metabolic pathways are saturated. 2. Color of light: Violet, blue and a portion of red light produce the highest rate. Other colors are poorly absorbed and would produce very little photosynthesis. 3. Concentration of carbon dioxide: The higher the concentration the faster the rate up to the point of saturation. 4. Temperature:

The higher the intensity the faster the rate up to the point that the metabolic pathways are saturated. 2. Color of light: Violet, blue and a portion of red light produce the highest rate. Other colors are poorly absorbed and would produce very little photosynthesis. 3. Concentration of carbon dioxide: The higher the concentration the faster the rate up to the point of saturation. 4. Temperature:

Factors affecting photosynthesis - Photosynthesis - AQA - GCSE Combined Science Revision - AQA Trilogy - BBC Bitesize Factors affecting photosynthesis
Photosynthesis - AQA
Add to My Bitesize
Factors affecting photosynthesis
Light intensity
Carbon dioxide concentration
Temperature
Chlorophyll
The compensation point
 Several factors can affect the rate of photosynthesis: light intensity
carbon dioxide concentration
temperature
The amount of chlorophyll also affects the rate of photosynthesis: plants in lighting conditions unfavourable for photosynthesis synthesise more chlorophyll, to absorb the light required
the effects of some plant diseases affect the amount of chlorophyll, and therefore the ability of a plant to photosynthesise
Light intensity
Without enough light, a plant cannot photosynthesise very quickly - even if there is plenty of water and carbon dioxide and a suitable temperature. Increasing the light intensity increases the rate of photosynthesis, until some other factor – a limiting factor – becomes in short supply. previous
next
previous
next
previous
next
previous
next
At very high light intensities, photosynthesis is slowed and then inhibited, but these light intensities do not occur in nature. Carbon dioxide concentration
Carbon dioxide – with water – is one of the reactants in photosynthesis. If the concentration of carbon dioxide is increased, the rate of photosynthesis will therefore increase. Again, at some point, a factor may become limiting. Temperature
The chemical reactions that combine carbon dioxide and water to produce glucose are controlled by enzymes. As with any other enzyme-controlled reaction, the rate of photosynthesis is affected by temperature.

Factors affecting photosynthesis - Photosynthesis - AQA - GCSE Combined Science Revision - AQA Trilogy - BBC Bitesize

Factors affecting photosynthesis
Photosynthesis - AQA
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Factors affecting photosynthesis
Light intensity
Carbon dioxide concentration
Temperature
Chlorophyll
The compensation point

What are some factors that may slow down or speed up the rate of photosynthesis? | Yahoo Answers What are some factors that may slow down or speed up the rate of photosynthesis?
What are some factors that may slow down or speed up the rate of photosynthesis?
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 Explain how each will do so. 4 Answers
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1. Intensity of sunlight. The higher the intensity the faster the rate up to the point that the metabolic pathways are saturated. 2. Color of light: Violet, blue and a portion of red light produce the highest rate. Other colors are poorly absorbed and would produce very little photosynthesis. 3. Concentration of carbon dioxide:

What are some factors that may slow down or speed up the rate of photosynthesis? | Yahoo Answers

What are some factors that may slow down or speed up the rate of photosynthesis?
What are some factors that may slow down or speed up the rate of photosynthesis?
4 Answers

Explain how each will do so. 4 Answers
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saffronesque
Lv 7
9 years ago
Favorite Answer
1. Intensity of sunlight. The higher the intensity the faster the rate up to the point that the metabolic pathways are saturated. 2. Color of light: Violet, blue and a portion of red light produce the highest rate. Other colors are poorly absorbed and would produce very little photosynthesis. 3. Concentration of carbon dioxide:

How Light Intensity Affects Photosynthetic Rate How Light Intensity Affects Photosynthetic Rate
Click graph to see notes! How Light Intensity Affects Photosynthetic Rate
[ Factors Affecting Photosynthetic Rate]
How Light Intensity Affects Photosynthetic Rate
Click graph to see notes! As light intensity increases, the photosynthetic rate increases until a point is reached where the rate begins to level off. At low light intensity, photosynthesis occurs slowly because only a small quantity of ATP and NADPH is created by the light dependent reactions. As light intensity increases, more ATP and NADPH are created, thus increasing the photosynthetic rate. At high light intensity, photosynthetic rate levels out, not due to light intensity but due to other limiting factors, including competition between oxygen and carbon dioxide for the active site on RUBP carboxylase. Other Factors Affecting Photosynthetic Rate
[ Carbon Dioxide Concentration] [ Temperature]
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How Light Intensity Affects Photosynthetic Rate

How Light Intensity Affects Photosynthetic Rate
Click graph to see notes!

How Light Intensity Affects Photosynthetic Rate
[ Factors Affecting Photosynthetic Rate]
How Light Intensity Affects Photosynthetic Rate
Click graph to see notes! As light intensity increases, the photosynthetic rate increases until a point is reached where the rate begins to level off. At low light intensity, photosynthesis occurs slowly because only a small quantity of ATP and NADPH is created by the light dependent reactions. As light intensity increases, more ATP and NADPH are created, thus increasing the photosynthetic rate. At high light intensity, photosynthetic rate levels out, not due to light intensity but due to other limiting factors, including competition between oxygen and carbon dioxide for the active site on RUBP carboxylase. Other Factors Affecting Photosynthetic Rate
[ Carbon Dioxide Concentration] [ Temperature]
Slichter

Factors affecting photosynthesis - Photosynthesis - AQA - GCSE Combined Science Revision - AQA Trilogy - BBC Bitesize Factors affecting photosynthesis
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Light intensity
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Plants make their own food using photosynthesis. The food that plants produce is important, not only for the plants themselves, but for the other organisms that feed on the plants. Part of
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Factors affecting photosynthesis
There are several ways of measuring the rate of photosynthesis in the lab. These include: the rate of oxygen output
the rate of carbon dioxide uptake
the rate of carbohydrate production
These are not perfect methods as the plant will also be respiring, which will use up some oxygen and carbohydrate and increase carbon dioxide output. Several factors can affect the rate of photosynthesis: light intensity
carbon dioxide concentration
temperature
The amount of chlorophyll also affects the rate of photosynthesis: plants in lighting conditions unfavourable for photosynthesis synthesise more chlorophyll, to absorb the light required
the effects of some plant diseases affect the amount of chlorophyll, and therefore the ability of a plant to photosynthesise
Light intensity
Without enough light, a plant cannot photosynthesise very quickly - even if there is plenty of water and carbon dioxide and a suitable temperature. Increasing the light intensity increases the rate of photosynthesis, until some other factor – a limiting factor – becomes in short supply. previous
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At very high light intensities, photosynthesis is slowed and then inhibited, but these light intensities do not occur in nature.

[Explained] Factors Affecting Photosynthesis [Explained] Factors Affecting Photosynthesis
[Explained] Factors Affecting Photosynthesis
Light
Carbon Dioxide Concentration
Temperature
Water
 Graph Of How Light Affects The Rate Of Photosynthesis
Light
When we discuss light as a factor that affects photosynthesis we try to  differentiate it into three parts namely light intensity, light quality and  the duration of exposure to light. There is a linear relationship between  incident light and CO2 fixation rates at low intensities. At higher  intensities the rate does not keep increasing exponentially because the  other factors such as water, CO2 concentration and temperature limit the  rate gradually. It is interesting to know that light saturation occurs at 10 per cent of  the full sunlight. What this means as a factor for photosynthesis is that  light is rarely a limiting factor only exceptions being the plants that  stand in shade or plants in thick forests. Trees in those forests need to  compete each other for available resources just like in a normal population  of humans. Increase in incident light beyond a point results in the decrease of  photosynthesis due to the breakdown of chlorophyll. Carbon Dioxide Concentration
The major limiting factor for photosynthesis is Carbon Dioxide (CO2). As  the carbon dioxide concentration is very low in the atmosphere. In  percentage terms it can be put somewhere between 0.03 to 0.04 per  cent.

[Explained] Factors Affecting Photosynthesis

[Explained] Factors Affecting Photosynthesis
[Explained] Factors Affecting Photosynthesis
Light
Carbon Dioxide Concentration
Temperature
Water

Graph Of How Light Affects The Rate Of Photosynthesis
Light
When we discuss light as a factor that affects photosynthesis we try to  differentiate it into three parts namely light intensity, light quality and  the duration of exposure to light. There is a linear relationship between  incident light and CO2 fixation rates at low intensities. At higher  intensities the rate does not keep increasing exponentially because the  other factors such as water, CO2 concentration and temperature limit the  rate gradually. It is interesting to know that light saturation occurs at 10 per cent of  the full sunlight. What this means as a factor for photosynthesis is that  light is rarely a limiting factor only exceptions being the plants that  stand in shade or plants in thick forests. Trees in those forests need to  compete each other for available resources just like in a normal population  of humans. Increase in incident light beyond a point results in the decrease of  photosynthesis due to the breakdown of chlorophyll. Carbon Dioxide Concentration
The major limiting factor for photosynthesis is Carbon Dioxide (CO2). As  the carbon dioxide concentration is very low in the atmosphere. In  percentage terms it can be put somewhere between 0.03 to 0.04 per  cent.

IB Biology Notes - 3.8 Photosynthesis Photosynthesis
Photosynthesis
3.8.1 State that photosynthesis involves the conversion of light energy into chemical energy.
3.8.2 State that light from the Sun is composed of a range of wavelengths (colours).
3.8.3 State that chlorophyll is the main photosynthetic pigment.
3.8.4 Outline the differences in absorption of red, blue and green light by chlorophyll.
3.8.5 State that light energy is used to produce ATP, and to split water molecules (photolysis) to form oxygen and hydrogen.
3.8.6 State that ATP and hydrogen (derived from the photolysis of water) are used to fix carbon dioxide to make organic molecules.
3.8.7 Explain that the rate of photosynthesis can be measured directly by the production of oxygen or the uptake of carbon dioxide, or indirectly by an increase in biomass.
3.8.8 Outline the effects of temperature, light intensity and carbon dioxide concentration on the rate of photosynthesis.
 For example, aquatic plants release oxygen bubbles during photosynthesis and so these can be collected and measured. The uptake of carbon dioxide is more difficult to measure so it is usually done indirectly. When carbon dioxide is absorbed from water the pH of the water rises and so this can be measured with pH indicators or pH meters. Finally, photosynthesis can be measured through an increase in biomass. If batches of plants are harvested at a series of times and the biomass of these batches is calculated, the rate increase in biomass gives an indirect measure of the rate of photosynthesis in the plants. 3.8.8 Outline the effects of temperature, light intensity and carbon dioxide concentration on the rate of photosynthesis. As temperature increases, the rate of photosynthesis increases more and more steeply until the optimum temperature is reached. If temperature keeps increasing above the optimum temperature then photosynthesis starts to decrease very rapidly. As light intensity increases so does photosynthesis until a certain point. At a high light intensities photosynthesis reaches a plateau and so does not increase any more.

IB Biology Notes - 3.8 Photosynthesis

For example, aquatic plants release oxygen bubbles during photosynthesis and so these can be collected and measured. The uptake of carbon dioxide is more difficult to measure so it is usually done indirectly. When carbon dioxide is absorbed from water the pH of the water rises and so this can be measured with pH indicators or pH meters. Finally, photosynthesis can be measured through an increase in biomass. If batches of plants are harvested at a series of times and the biomass of these batches is calculated, the rate increase in biomass gives an indirect measure of the rate of photosynthesis in the plants. 3.8.8 Outline the effects of temperature, light intensity and carbon dioxide concentration on the rate of photosynthesis. As temperature increases, the rate of photosynthesis increases more and more steeply until the optimum temperature is reached. If temperature keeps increasing above the optimum temperature then photosynthesis starts to decrease very rapidly. As light intensity increases so does photosynthesis until a certain point. At a high light intensities photosynthesis reaches a plateau and so does not increase any more.

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Without enough light, a plant cannot photosynthesise very quickly - even if there is plenty of water and carbon dioxide. Increasing the light intensity increases the rate of photosynthesis, until some other factor - a limiting factor - becomes in short supply. previous
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The rate of photosynthesis is directly proportional to the light intensity until another factor becomes limiting. At very high light intensities, photosynthesis is slowed, but these light intensities do not occur in nature. previous
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light intensity
carbon dioxide concentration
temperature
Light intensity
Without enough light, a plant cannot photosynthesise very quickly - even if there is plenty of water and carbon dioxide. Increasing the light intensity increases the rate of photosynthesis, until some other factor - a limiting factor - becomes in short supply. previous
next
previous
next
previous
next
previous
next
The rate of photosynthesis is directly proportional to the light intensity until another factor becomes limiting. At very high light intensities, photosynthesis is slowed, but these light intensities do not occur in nature. previous
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GCSE Subjects
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up
down
Art and Design
Biology (Single Science)
Business
Chemistry (Single Science)
Combined Science
Computer Science
Design and Technology
Digital Technology (CCEA)
Drama
English Language
English Literature
French
Geography
German
History
Home Economics: Food and Nutrition (CCEA)
Hospitality (CCEA)
ICT
Irish – Learners (CCEA)
Journalism (CCEA)
Learning for Life and Work (CCEA)
Mandarin
Maths
Maths Numeracy (WJEC)
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Factors affecting the rate of photosynthesis - Pass My Exams: Easy exam revision notes for GSCE Biology Factors affecting the rate of photosynthesis
Factors affecting the rate of photosynthesis
3. Carbon Dioxide
 Factors affecting the rate of photosynthesis - Pass My Exams: Easy exam revision notes for GSCE Biology
Home > GCSE Biology > Photosynthesis
Factors affecting the rate of photosynthesis
3. Carbon Dioxide
Carbon dioxide is used to make sugar in the photosynthesis reaction. The concentration of carbon dioxide in the Earth’s atmosphere varies between 0.03% and 0.04%. An increase in the concentration of carbon dioxide gives an increase in the rate of photosynthesis. It is difficult to do this out in the open air but is possible in a greenhouse. The rate of photosynthesis increases linearly with increasing carbon dioxide concentration (from point A to B on the graph). Gradually the rate falls of and at a certain carbon dioxide concentration the rate of photosynthesis stays constant (from point B to C on the graph). Here a rise in carbon dioxide levels has no affect on the rate of photosynthesis as the other factors such as light intensity become limiting. Many crops such as tomatoes and lettuce give higher yield when grown in greenhouses.

Factors affecting the rate of photosynthesis - Pass My Exams: Easy exam revision notes for GSCE Biology

Factors affecting the rate of photosynthesis
Factors affecting the rate of photosynthesis
3. Carbon Dioxide

Factors affecting the rate of photosynthesis - Pass My Exams: Easy exam revision notes for GSCE Biology
Home > GCSE Biology > Photosynthesis
Factors affecting the rate of photosynthesis
3. Carbon Dioxide
Carbon dioxide is used to make sugar in the photosynthesis reaction. The concentration of carbon dioxide in the Earth’s atmosphere varies between 0.03% and 0.04%. An increase in the concentration of carbon dioxide gives an increase in the rate of photosynthesis. It is difficult to do this out in the open air but is possible in a greenhouse. The rate of photosynthesis increases linearly with increasing carbon dioxide concentration (from point A to B on the graph). Gradually the rate falls of and at a certain carbon dioxide concentration the rate of photosynthesis stays constant (from point B to C on the graph). Here a rise in carbon dioxide levels has no affect on the rate of photosynthesis as the other factors such as light intensity become limiting. Many crops such as tomatoes and lettuce give higher yield when grown in greenhouses.

THE CONCEPT OF LIMITING FACTORS | Biology Boom THE CONCEPT OF LIMITING FACTORS
THE CONCEPT OF LIMITING FACTORS
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 The rate of photosynthesis goes on increasing with an increase in the concentration of carbon dioxide. Finally, the supply of carbon dioxide reaches 5mg per hour. At this point the two factors have a maximum effect on photosynthesis. Now light intensity is just enough to utilize 5 mg. Further increase in the supply of carbon dioxide will have no effect on the rate of photosynthesis. Thus light has now become the limiting factor. Rate of photosynthesis can increase only if light intensity is increased. Similar Articles: Factors affecting photosynthesis rate in a plant
Subjective And Short Questions For Photosynthesis
Objective Questions For Photosynthesis
DEFINITIONS AND KEY POINTS FOR Photosynthesis
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THE CONCEPT OF LIMITING FACTORS | Biology Boom

THE CONCEPT OF LIMITING FACTORS
THE CONCEPT OF LIMITING FACTORS
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The rate of photosynthesis goes on increasing with an increase in the concentration of carbon dioxide. Finally, the supply of carbon dioxide reaches 5mg per hour. At this point the two factors have a maximum effect on photosynthesis. Now light intensity is just enough to utilize 5 mg. Further increase in the supply of carbon dioxide will have no effect on the rate of photosynthesis. Thus light has now become the limiting factor. Rate of photosynthesis can increase only if light intensity is increased. Similar Articles: Factors affecting photosynthesis rate in a plant
Subjective And Short Questions For Photosynthesis
Objective Questions For Photosynthesis
DEFINITIONS AND KEY POINTS FOR Photosynthesis
DEFINITIONS AND KEY POINTS OF ECOLOGY INDIVIDUAL AND POPULATION
Home » Botany » THE CONCEPT OF LIMITING FACTORS
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Photosynthesis- definition, equation, steps, process, diagram Photosynthesis- definition, equation, steps, process, diagram
Photosynthesis- definition, equation, steps, process, diagram
Table of Contents
Photosynthesis Definition
Photosynthesis equations/reactions/formula
Oxygenic Photosynthesis
Carbon dioxide + Water + solar energy → Glucose + Oxygen
6CO 2 + 6H 2 O + solar energy → C 6 H 12 O 6 + 6O 2
Carbon dioxide + Water + solar energy → Glucose + Oxygen + Water
6CO 2 + 12H 2 O+ solar energy → C 6 H 12 O 6 + 6O 2 + 6H 2 O
Anoxygenic Photosynthesis
CO 2 + 2H 2 S + light energy → (CH 2 O) + H 2 O + 2S
Video Animation: Photosynthesis (Crash Course)
Photosynthetic pigments
Chlorophyll
Bacteriorhodopsin
Phycobilins
Carotenoids
Factors affecting photosynthesis
Light
Carbon dioxide
Temperature
Process/ Steps of Photosynthesis
1. Absorption of light
2. Electron Transfer
3. Generation of ATP
4. Carbon Fixation
Types/ Stages/ Parts of photosynthesis
1. Light-dependent reactions
Photosystem II
Photosystem I
Reaction
Video Animation: The Light Reactions of Photosynthesis (Ricochet Science)
2. Light independent reactions (Calvin cycle)
Step 1: Fixation of CO2 into 3-phosphoglycerate
Step 2: Conversion of 3-phosphoglycerate to glyceraldehydes 3-phosphate
Step 3: Regeneration of ribulose 1,5-biphosphate from triose phosphates
Reaction
Video Animation: The Calvin Cycle (Ricochet Science)
Products of Photosynthesis
Photosynthesis examples
Photosynthesis in green plants or oxygenic bacteria
Photosynthesis in sulfur bacteria
Importance of photosynthesis
Artificial photosynthesis
Video Animation: Learning from leaves: Going green with artificial photosynthesis
Photosynthesis vs Cellular respiration
Photosynthesis
Cellular respiration
Video Animation: Photosynthesis vs. Cellular Respiration Comparison (BOGObiology)
FAQs (Revision Questions)
References
Sources
 This Law states that the rate of a physiological process will be limited by the factor which is in the shortest supply. In the same way, the rate of photosynthesis is also affected by a number of factors, which are namely; Light
As the intensity of light increases, the rate of light-dependent reactions of photosynthesis and in turn, the rate of photosynthesis increases. With increased light intensity, the number of photons falling on a leaf also increases. As a result, more chlorophyll molecules are ionized, and more ATPs and NADH are generated. After a point, however, the rate of photosynthesis remains constant as the light intensity increases. At this point, photosynthesis is limited by some other factors. Besides, the wavelength of light also affects the rate of photosynthesis. Different photosynthetic systems absorb light energy more effectively at different wavelengths. Carbon dioxide
An increase in the concentration of carbon dioxide increases the rate at which carbon is incorporated into carbohydrates in the light-independent reactions of photosynthesis.

Photosynthesis- definition, equation, steps, process, diagram

This Law states that the rate of a physiological process will be limited by the factor which is in the shortest supply. In the same way, the rate of photosynthesis is also affected by a number of factors, which are namely; Light
As the intensity of light increases, the rate of light-dependent reactions of photosynthesis and in turn, the rate of photosynthesis increases. With increased light intensity, the number of photons falling on a leaf also increases. As a result, more chlorophyll molecules are ionized, and more ATPs and NADH are generated. After a point, however, the rate of photosynthesis remains constant as the light intensity increases. At this point, photosynthesis is limited by some other factors. Besides, the wavelength of light also affects the rate of photosynthesis. Different photosynthetic systems absorb light energy more effectively at different wavelengths. Carbon dioxide
An increase in the concentration of carbon dioxide increases the rate at which carbon is incorporated into carbohydrates in the light-independent reactions of photosynthesis.

What are some factors that may slow down or speed up the rate of photosynthesis - Science Mathematics What are some factors that may slow down or speed up the rate of photosynthesis
What are some factors that may slow down or speed up the rate of photosynthesis Other colors are poorly absorbed and would produce very little photosynthesis.3.Concentration of carbon dioxide: The higher the concentration the faster the rate up to the point of saturation.4.Temperature: The higher the temperature the faster the rate up to the point that heat damages the enzymes and stops the processes.......
Explain how each will do so. -
1. Intensity of sunlight. The higher the intensity the faster the rate up to the point that the metabolic pathways are saturated. 2. Color of light: Violet, blue and a portion of red light produce the highest rate. Other colors are poorly absorbed and would produce very little photosynthesis.

What are some factors that may slow down or speed up the rate of photosynthesis - Science Mathematics

What are some factors that may slow down or speed up the rate of photosynthesis
What are some factors that may slow down or speed up the rate of photosynthesis

Other colors are poorly absorbed and would produce very little photosynthesis.3.Concentration of carbon dioxide: The higher the concentration the faster the rate up to the point of saturation.4.Temperature: The higher the temperature the faster the rate up to the point that heat damages the enzymes and stops the processes.......
Explain how each will do so. -
1. Intensity of sunlight. The higher the intensity the faster the rate up to the point that the metabolic pathways are saturated. 2. Color of light: Violet, blue and a portion of red light produce the highest rate. Other colors are poorly absorbed and would produce very little photosynthesis.

 No, it doesn't. Increasing the intensity of light increases the
rate of photosynthesis
How does carbon dioxide effect the rate of photosynthesis? Too much can decrease the rate of Photosynthesis... Apparently..
<><><> Plants NEED CO2 to conduct photosynthesis. Increasing CO2
increases the rate of photosynthesis- to a point. How does increasing light intensity affect the rate of photosynthesis? The increase in light intensity increases the rate of
photosynthesis but, once it reaches the light saturation point the
rate of photosynthesis decreases. As light intensity increases the rate of photosynthesis? continues to increase
How does the rate of photosynthesis change as temperature increases? it goes slowly
True or false As light intensity increases indefinitely the rate of photosynthesis increases indefinitely?

No, it doesn't. Increasing the intensity of light increases the
rate of photosynthesis
How does carbon dioxide effect the rate of photosynthesis? Too much can decrease the rate of Photosynthesis... Apparently..
<><><> Plants NEED CO2 to conduct photosynthesis. Increasing CO2
increases the rate of photosynthesis- to a point. How does increasing light intensity affect the rate of photosynthesis? The increase in light intensity increases the rate of
photosynthesis but, once it reaches the light saturation point the
rate of photosynthesis decreases. As light intensity increases the rate of photosynthesis? continues to increase
How does the rate of photosynthesis change as temperature increases? it goes slowly
True or false As light intensity increases indefinitely the rate of photosynthesis increases indefinitely?

Photosynthesis - Simple English Wikipedia, the free encyclopedia Photosynthesis
Photosynthesis
Contents
Reactions and Phases of the process
Light-dependent Phase
Dark phase
Factors affecting photosynthesis
Life timeline
Light intensity
Carbon dioxide levels
Temperature
Early evolution
Effectiveness
Related pages
References
 Human timeline and Nature timeline)
There are three main factors affecting photosynthesis: Light intensity
Carbon dioxide concentration
Temperature
Light intensity
If there is little light shining on a plant, the light-dependent reactions will not work efficiently. This means that photolysis (breakdown of water by light) will not happen quickly, and therefore little NADPH and ATP will be made. This shortage of NADPH and ATP will lead to the light-independent reactions not working as NADPH and ATP are needed for the light-independent reactions to work. The light intensity required is easily investigated in an aquatic plant such as pondweed. The oxygen bubbles given off can be counted or the volume measured. By changing the distance between light and plant, the light intensity is made to vary. Change in light intensity will affect the change in rate of photosynthesis . Artificial lighting can be used in the dark to maximise the photosynthetic rate. Carbon dioxide levels
Carbon dioxide is used in the light-independent reactions.

Photosynthesis - Simple English Wikipedia, the free encyclopedia

Photosynthesis
Photosynthesis
Contents
Reactions and Phases of the process
Light-dependent Phase
Dark phase
Factors affecting photosynthesis
Life timeline
Light intensity
Carbon dioxide levels
Temperature
Early evolution
Effectiveness
Related pages
References

Human timeline and Nature timeline)
There are three main factors affecting photosynthesis: Light intensity
Carbon dioxide concentration
Temperature
Light intensity
If there is little light shining on a plant, the light-dependent reactions will not work efficiently. This means that photolysis (breakdown of water by light) will not happen quickly, and therefore little NADPH and ATP will be made. This shortage of NADPH and ATP will lead to the light-independent reactions not working as NADPH and ATP are needed for the light-independent reactions to work. The light intensity required is easily investigated in an aquatic plant such as pondweed. The oxygen bubbles given off can be counted or the volume measured. By changing the distance between light and plant, the light intensity is made to vary. Change in light intensity will affect the change in rate of photosynthesis . Artificial lighting can be used in the dark to maximise the photosynthetic rate. Carbon dioxide levels
Carbon dioxide is used in the light-independent reactions.

Factors affecting photosynthesis - Photosynthesis - OCR Gateway - GCSE Combined Science Revision - OCR Gateway - BBC Bitesize Factors affecting photosynthesis
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Factors affecting photosynthesis
Light intensity
Carbon dioxide concentration
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Chlorophyll
The compensation point
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Plants make food using photosynthesis. This food is important for the plants themselves and for organisms that feed on plants. Getting optimum rates of photosynthesis produces maximum plant yields. Part of
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Factors affecting photosynthesis
There are several ways of measuring the rate of photosynthesis in the lab. These include: the rate of oxygen output
the rate of carbon dioxide uptake
the rate of carbohydrate production
These are not perfect methods as the plant will also be respiring, which will use up some oxygen and carbohydrate and increase carbon dioxide output. Several factors can affect the rate of photosynthesis: light intensity
carbon dioxide concentration
temperature
The amount of chlorophyll also affects the rate of photosynthesis: plants in lighting conditions unfavourable for photosynthesis may synthesise more chlorophyll, to absorb the light required
the effects of some plant diseases affect the amount of chlorophyll, and therefore the ability of a plant to photosynthesise
Light intensity
Without enough light, a plant cannot photosynthesise very quickly - even if there is plenty of water and carbon dioxide and a suitable temperature. Increasing the light intensity increases the rate of photosynthesis , until some other factor - a limiting factor - becomes in short supply.

Investigating the Factors that Affect the Rate of... | 123 Help Me Investigating the Factors that Affect the Rate of Photosynthesis
Investigating the Factors that Affect the Rate of Photosynthesis · Light intensity- if the light is brighter, then the rate of
photosynthesis increases and visa versa. · Water supply- if a plant cannot absorb enough water, then the rate
of photosynthesis decreases. · Carbon dioxide concentration- if the percentage of carbon dioxide in
the atmosphere increases, so does the rate of photosynthesis. · Temperature- if the temperature increases, then the rate of
photosynthesis also increases, (however, temperatures above 40OC can
damage a plant and photosynthesis stops because the chlorophyll gets
too hot). The factor I will be investigating is light intensity; how it affects
the rate of photosynthesis. The factors I will be keeping constant are: · Water supply- by using same millimetre of water each time. · Temperature- by using a thermometer to make sure the water is at the
temperature each time. · Carbon dioxide- by not adding any thing in the water which increase
the carbon dioxide level, such as Hydrogen carbonate.

· Light intensity- if the light is brighter, then the rate of
photosynthesis increases and visa versa. · Water supply- if a plant cannot absorb enough water, then the rate
of photosynthesis decreases. · Carbon dioxide concentration- if the percentage of carbon dioxide in
the atmosphere increases, so does the rate of photosynthesis. · Temperature- if the temperature increases, then the rate of
photosynthesis also increases, (however, temperatures above 40OC can
damage a plant and photosynthesis stops because the chlorophyll gets
too hot). The factor I will be investigating is light intensity; how it affects
the rate of photosynthesis. The factors I will be keeping constant are: · Water supply- by using same millimetre of water each time. · Temperature- by using a thermometer to make sure the water is at the
temperature each time. · Carbon dioxide- by not adding any thing in the water which increase
the carbon dioxide level, such as Hydrogen carbonate.

What is Photosynthesis | Definition from Seneca Learning
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Photosynthesis
Photosynthesis takes place inside chloroplasts found in plants and algae. The reaction is endothermic, meaning that it requires energy. The source of this energy is sunlight, which is trapped by a chemical called chlorophyll inside chloroplasts in plant cells. During photosynthesis, carbon dioxide reacts with water to produce glucose and oxygen. The Rate of Photosynthesis
The four key factors affecting the rate of photosynthesis are: Chlorophyll concentration - High chlorophyll concentration gives a high rate of photosynthesis. Light intensity - Increasing light intensity increases the rate of photosynthesis because more energy is provided. However, if the light intensity is increased above a certain threshold, the rate of photosynthesis will not increase because another factor (such as temperature) is limiting the rate of the reaction. Carbon dioxide concentration - Increasing the carbon dioxide concentration increases the rate of photosynthesis because carbon dioxide is a reactant in photosynthesis. However, above a certain threshold, further increases in the carbon dioxide concentration do not increase the rate of photosynthesis because another factor (such as light intensity) is limiting the rate of reaction.

10 Major Factors Affecting Photosynthesis 10 Major Factors Affecting Photosynthesis
10 Major Factors Affecting Photosynthesis
The following points highlight the ten major factors affecting photosynthesis. The factors are: 1. Light 2. Carbon-Dioxide 3. Water 4. Nutrient Supply 5. Temperature 6. Oxygen Concentration 7. Chemical Compounds 8. Chlorophyll Content 9. Leaf Anatomy 10. Protoplasmic Factors.
Factor # 1. Light:
Light Intensity:
Photo-Oxidation:
Light Quality:
Duration of Light Period:
Factor # 2. Carbon-Dioxide:
Carbon Dioxide Supply:
Absorption of Carbon Dioxide:
Carbon Dioxide Concentration:
Factor # 3. Water:
Factor # 4. Nutrient Supply:
Factor # 5. Temperature:
They are as follows:
Factor # 6. Oxygen Concentration:
Factor # 7. Chemical Compounds:
Factor # 8. Chlorophyll Content:
Factor # 9. Leaf Anatomy:
Factor # 10. Protoplasmic Factors:
 ADVERTISEMENTS: Each pigment has its own absorption spectrum. The chlorophylls absorb heavily in the blue and red region of the spectrum and β-carotene mostly in the blue region. Most of the light is being reflected in the green region, giving a leaf the green colour. The greater absorption of light is found in thicker leaves with, a lower percentage of transmitted light as compared to thinner leaves. Light Intensity: There may be a direct relationship between the rate of photosynthesis and the intensity of light, provided that no other factor is limiting. For example, on bright sunny days the carbon dioxide concentration of the atmosphere is usually the limiting factor, not light intensity. However, on cloudy days light may be the limiting factor. Heinicke and Childers (1937) have found that the rate of photosynthesis steadily increased with light intensity up to about full sunlight even through saturation intensity for a single exposed leaf would be sufficiently lower.

ADVERTISEMENTS: Each pigment has its own absorption spectrum. The chlorophylls absorb heavily in the blue and red region of the spectrum and β-carotene mostly in the blue region. Most of the light is being reflected in the green region, giving a leaf the green colour. The greater absorption of light is found in thicker leaves with, a lower percentage of transmitted light as compared to thinner leaves. Light Intensity: There may be a direct relationship between the rate of photosynthesis and the intensity of light, provided that no other factor is limiting. For example, on bright sunny days the carbon dioxide concentration of the atmosphere is usually the limiting factor, not light intensity. However, on cloudy days light may be the limiting factor. Heinicke and Childers (1937) have found that the rate of photosynthesis steadily increased with light intensity up to about full sunlight even through saturation intensity for a single exposed leaf would be sufficiently lower.

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 They take in the carbon dioxide and give off oxygen through the process of photosynthesis. People also need carbon dioxide, we recycle it as well. Read More
Investigating the Effect of Light Intensity on Photosynthesis in a Pondweed
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6 CO2 + 6 H2O givesC6H12O6 + 6 O2    Carbon Dioxide + Water gives Glucose + Oxygen    A limiting factor is one that controls a process, such as organism  growth or species population size or distribution. In photosynthesis  the rate is affected by three factors, temperature, carbon dioxide  concentration and light. Not enough light can slow down the rate of  photosynthesis, without enough light a plant cannot photosynthesise  very fast, even if there is plenty of water and carbon dioxide. Increasing the light intensity will make photosynthesis faster. Variables: In this experiment there are a few things we have to keep the same. Read More
biology - how light intensity affects the rate of photosynthesis
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Biology Coursework ¡V Does The Light Intensity Affect the Rate of Photosynthesis  The Investigation  In this experiment I will investigate the affect in which the light intensity will have on a plants photosynthesis process. This will be done by measuring the bubbles of oxygen and having a bulb for the light intensity variable.

Investigating Factors that Affect the Rate of... | 123 Help Me

Investigating Factors that Affect the Rate of Photosynthesis in Elodea
Investigating Factors that Affect the Rate of Photosynthesis in Elodea
Investigating Photosynthesis in Canadian Pondweed
Alternative Energy Over Fossil Fuels
Lab Report Testing the Effect of Light Intensity on the Rate of Photosynthisis
The CO2 Levels Are The Key Issues In Climate Change
Investigating the Effect of Light Intensity on Photosynthesis in a Pondweed
biology - how light intensity affects the rate of photosynthesis
The Process of Photosynthesis
Light And Photosynthesis: An Introduction To Photosynthesis
Rates of Reaction Investigation
Synthesis: The Process Of The Stages Of Photosynthesis

They take in the carbon dioxide and give off oxygen through the process of photosynthesis. People also need carbon dioxide, we recycle it as well. Read More
Investigating the Effect of Light Intensity on Photosynthesis in a Pondweed
1053 Words | 5 Pages
6 CO2 + 6 H2O givesC6H12O6 + 6 O2    Carbon Dioxide + Water gives Glucose + Oxygen    A limiting factor is one that controls a process, such as organism  growth or species population size or distribution. In photosynthesis  the rate is affected by three factors, temperature, carbon dioxide  concentration and light. Not enough light can slow down the rate of  photosynthesis, without enough light a plant cannot photosynthesise  very fast, even if there is plenty of water and carbon dioxide. Increasing the light intensity will make photosynthesis faster. Variables: In this experiment there are a few things we have to keep the same. Read More
biology - how light intensity affects the rate of photosynthesis
2109 Words | 9 Pages
Biology Coursework ¡V Does The Light Intensity Affect the Rate of Photosynthesis  The Investigation  In this experiment I will investigate the affect in which the light intensity will have on a plants photosynthesis process. This will be done by measuring the bubbles of oxygen and having a bulb for the light intensity variable.

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 Carbon fixation occurs. 3-PGA is reduced. RuBP is regenerated. Which is the best hypothesis for the scientific question “How does light intensity affect the rate of photosynthesis?” Light intensity, CO2 concentration, and temperature are factors that determine the rate of photosynthesis. Light intensity has no effect on the rate of photosynthesis. If the distance between the source of light and the plant is increased, the rate of photosynthesis will decrease. Light intensity has an impact on the rate of photosynthesis. Fiona wants to use the scientific method to answer the question “Do oxygen levels in the air affect rates of photosynthesis?” She reads about photosynthesis in her biology book and is ready to carry out the next step.

Carbon fixation occurs. 3-PGA is reduced. RuBP is regenerated. Which is the best hypothesis for the scientific question “How does light intensity affect the rate of photosynthesis?” Light intensity, CO2 concentration, and temperature are factors that determine the rate of photosynthesis. Light intensity has no effect on the rate of photosynthesis. If the distance between the source of light and the plant is increased, the rate of photosynthesis will decrease. Light intensity has an impact on the rate of photosynthesis. Fiona wants to use the scientific method to answer the question “Do oxygen levels in the air affect rates of photosynthesis?” She reads about photosynthesis in her biology book and is ready to carry out the next step.

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Factors Impacting Photosynthesis
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Factors Impacting Photosynthesis
Light intensity is one factor that affects photosynthesis. Without the energy from light, the chemical reaction cannot happen. If plants have less light, they photosynthesize more slowly. The speed of photosynthesis increases with greater light intensity, though it ultimately levels off once the plant has as much light as it needs. Carbon dioxide concentration is another factor that affects photosynthesis. Generally, there is plenty of carbon dioxide in the air so there is little impact on photosynthesis in different environments. It's still a requirement, however, and if we deprive plants of carbon dioxide in the lab, we find a similar relationship to that of light: the rate of photosynthesis increases with carbon dioxide concentration until the plant has enough or more carbon dioxide than it needs; at that point, the rate doesn't increase much further. Based on the equation, it's probably not surprising that carbon dioxide and sunlight are two major factors that affect photosynthesis, but there is a third that isn't so obvious:

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Environmental Factors That Impact Photosynthesis
Environmental Factors That Impact Photosynthesis
Lesson Transcript
Photosynthesis
Factors Impacting Photosynthesis
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Environmental Factors That Impact Photosynthesis
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Environmental Factors That Impact Photosynthesis
Related Study Materials

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Factors Impacting Photosynthesis
Light intensity is one factor that affects photosynthesis. Without the energy from light, the chemical reaction cannot happen. If plants have less light, they photosynthesize more slowly. The speed of photosynthesis increases with greater light intensity, though it ultimately levels off once the plant has as much light as it needs. Carbon dioxide concentration is another factor that affects photosynthesis. Generally, there is plenty of carbon dioxide in the air so there is little impact on photosynthesis in different environments. It's still a requirement, however, and if we deprive plants of carbon dioxide in the lab, we find a similar relationship to that of light: the rate of photosynthesis increases with carbon dioxide concentration until the plant has enough or more carbon dioxide than it needs; at that point, the rate doesn't increase much further. Based on the equation, it's probably not surprising that carbon dioxide and sunlight are two major factors that affect photosynthesis, but there is a third that isn't so obvious:

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The process of photosynthesis can be affected by a number of factors. These include: 1. Light Intensity
The amount of light reaching the plant’s leaf has a significant impact on the rate by which it creates food. In general, the higher the light intensity, the higher the rate of photosynthesis by plants. On the flip side, when light intensity is low, the rate of photosynthesis will also decline. This is why only certain plants can grow in shady environments, while others demand full sun. Further Reading: 24 Herbs to Grow in the Shade
2. Concentration of Carbon Dioxide
Carbon dioxide is a vital ingredient in the process of photosynthesis.

As light intensity increases, what happens to the rate of photosynthesis? | Socratic As light intensity increases, what happens to the rate of photosynthesis?
As light intensity increases, what happens to the rate of photosynthesis?
1 Answer
mason m
Explanation:
 The light's photons excite the electrons in the pigments of the photosystems which activates the light reactions portion of photosynthesis. The more light there is, the more photosystems in the thylakoid membrane can be activated. However, light intensity can only increase up to a certain point before the rate of photosynthesis no longer increases. Once there is a sufficient intensity of light, the ATP and NADPH that come from the light reactions will be in abundance. For the remaining part of photosynthesis to occur (the Calvin cycle), carbon dioxide is needed. Even if more and more ATP and NADPH are being formed, they will not be able to act if more carbon dioxide isn't entering the plant. Thus, the plant reaches a "light saturation point" and the rate of photosynthesis is limited due to a limited amount of carbon dioxide, or due to some other limiting factor. The following image provides more nuance. It shows that light intensity and the rate of photosynthesis increase with one another. It also shows that the rate at which photosynthesis levels out is dependent upon other factors—both plants in 0.1% CO₂, they cannot photosynthesize at nearly the rate of the plants in 0.4% CO₂.
Similarly, plants photosynthesize at a greater rate in higher temperatures (generally—not in temperatures that are too hot—this is also dependent upon species).

As light intensity increases, what happens to the rate of photosynthesis? | Socratic

As light intensity increases, what happens to the rate of photosynthesis?
As light intensity increases, what happens to the rate of photosynthesis?
1 Answer
mason m
Explanation:

The light's photons excite the electrons in the pigments of the photosystems which activates the light reactions portion of photosynthesis. The more light there is, the more photosystems in the thylakoid membrane can be activated. However, light intensity can only increase up to a certain point before the rate of photosynthesis no longer increases. Once there is a sufficient intensity of light, the ATP and NADPH that come from the light reactions will be in abundance. For the remaining part of photosynthesis to occur (the Calvin cycle), carbon dioxide is needed. Even if more and more ATP and NADPH are being formed, they will not be able to act if more carbon dioxide isn't entering the plant. Thus, the plant reaches a "light saturation point" and the rate of photosynthesis is limited due to a limited amount of carbon dioxide, or due to some other limiting factor. The following image provides more nuance. It shows that light intensity and the rate of photosynthesis increase with one another. It also shows that the rate at which photosynthesis levels out is dependent upon other factors—both plants in 0.1% CO₂, they cannot photosynthesize at nearly the rate of the plants in 0.4% CO₂.
Similarly, plants photosynthesize at a greater rate in higher temperatures (generally—not in temperatures that are too hot—this is also dependent upon species).

Effect of Carbon Dioxide on the Rate of Photosynthesis - Biology Notes for IGCSE 2014
# 43 Effect of Carbon Dioxide on the Rate of Photosynthesis
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 Effect of Carbon Dioxide on the Rate of Photosynthesis - Biology Notes for IGCSE 2014

# 43 Effect of Carbon Dioxide on the Rate of Photosynthesis
When the concentration of CO2 is low the rate of photosynthesis is also low. ( the plant has to spend time waiting for more CO2 to arrive). Increasing the concentration of CO2 increases the rate of photosynthesis. Experiment
Place a pond weed Elodea upside in a test tube containing water at 25°C. Place the tube in a beaker of fresh water. Place excess sodium bicarbonate (NaHCO3) in the water to give a constant saturated solution of CO2. Place the lamp (the only light source) at a fixed distance from the plant. Maintain the room temperature at 20°C. Count the number of oxygen bubbles given off by the plant in a one -minute period. This is the rate of photosynthesis at that particular concentration of CO2.

Effect of Carbon Dioxide on the Rate of Photosynthesis - Biology Notes for IGCSE 2014

# 43 Effect of Carbon Dioxide on the Rate of Photosynthesis
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Effect of Carbon Dioxide on the Rate of Photosynthesis - Biology Notes for IGCSE 2014

# 43 Effect of Carbon Dioxide on the Rate of Photosynthesis
When the concentration of CO2 is low the rate of photosynthesis is also low. ( the plant has to spend time waiting for more CO2 to arrive). Increasing the concentration of CO2 increases the rate of photosynthesis. Experiment
Place a pond weed Elodea upside in a test tube containing water at 25°C. Place the tube in a beaker of fresh water. Place excess sodium bicarbonate (NaHCO3) in the water to give a constant saturated solution of CO2. Place the lamp (the only light source) at a fixed distance from the plant. Maintain the room temperature at 20°C. Count the number of oxygen bubbles given off by the plant in a one -minute period. This is the rate of photosynthesis at that particular concentration of CO2.

 For example if we put soda lime (absorbs carbon dioxide)
with the plant and cover it with a plastic bag, the plant will be
lacking carbon dioxide and the rate of photosynthesis will
decrease. What are the factors affecting photosynthesis? The intensity of light, concentration of carbon dioxide and
temperature are the three main factors that affect photosynthesis. They determine the rate at which photosynthesis occurs. What factors might affect a plant's rate of photosynthesis and therefore its ability to grow? Light intensity, ambient temperature, and carbon dioxide
concentration affect a plant's rate of photosynthesis and therefore
its ability to grow. What environmental factors does not affect the rate of photosynthesis? Everything except; Light intensity, Carbon Dioxide
concentration, Temperature
How does temperature affect the rate of photoysistes? The higher the temperature, the higher the rate of
photosynthesis.

For example if we put soda lime (absorbs carbon dioxide)
with the plant and cover it with a plastic bag, the plant will be
lacking carbon dioxide and the rate of photosynthesis will
decrease. What are the factors affecting photosynthesis? The intensity of light, concentration of carbon dioxide and
temperature are the three main factors that affect photosynthesis. They determine the rate at which photosynthesis occurs. What factors might affect a plant's rate of photosynthesis and therefore its ability to grow? Light intensity, ambient temperature, and carbon dioxide
concentration affect a plant's rate of photosynthesis and therefore
its ability to grow. What environmental factors does not affect the rate of photosynthesis? Everything except; Light intensity, Carbon Dioxide
concentration, Temperature
How does temperature affect the rate of photoysistes? The higher the temperature, the higher the rate of
photosynthesis.

Factors Affecting Photosynthesis: Blackman's Principle, Questions, Videos Factors Affecting Photosynthesis
Factors Affecting Photosynthesis
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Factor Affecting Photosynthesis
Light
Carbon Dioxide Concentration
Browse more Topics under Photosynthesis In Higher Plants
Temperature
Water
Oxygen
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Question For You
 (Image source: biology-igcse.weeble.com)
Learn more about Light Reaction of Photosynthesis in more detail here. Carbon Dioxide Concentration
The atmosphere contains 0.03% of carbon dioxide amidst other gases. Plants take in carbon dioxide from the air. But, since the amount of CO2 in the air is very less, it acts as a limiting factor for photosynthesis. Experiments have been performed to study the rate of photosynthesis on increasing the concentration of CO2 in the atmosphere. It is seen that, when light and temperature are not the limiting factors, increasing CO2 concentration leads to an increase in the rate of photosynthesis. But, beyond a certain limit, CO2 starts accumulating in the plant and this leads to slowing down of the process. So, excessive CO2 inhibits photosynthesis especially when it starts to accumulate. Browse more Topics under Photosynthesis In Higher Plants
Dark Reaction and Photorespiration
Introduction To Photosynthesis
Light Reaction
Temperature
It is commonly seen in all biological and biochemical processes that they occur best in a certain optimum range of temperature.

Factors Affecting Photosynthesis: Blackman's Principle, Questions, Videos

Factors Affecting Photosynthesis
Factors Affecting Photosynthesis
Suggested Videos
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Question For You

(Image source: biology-igcse.weeble.com)
Learn more about Light Reaction of Photosynthesis in more detail here. Carbon Dioxide Concentration
The atmosphere contains 0.03% of carbon dioxide amidst other gases. Plants take in carbon dioxide from the air. But, since the amount of CO2 in the air is very less, it acts as a limiting factor for photosynthesis. Experiments have been performed to study the rate of photosynthesis on increasing the concentration of CO2 in the atmosphere. It is seen that, when light and temperature are not the limiting factors, increasing CO2 concentration leads to an increase in the rate of photosynthesis. But, beyond a certain limit, CO2 starts accumulating in the plant and this leads to slowing down of the process. So, excessive CO2 inhibits photosynthesis especially when it starts to accumulate. Browse more Topics under Photosynthesis In Higher Plants
Dark Reaction and Photorespiration
Introduction To Photosynthesis
Light Reaction
Temperature
It is commonly seen in all biological and biochemical processes that they occur best in a certain optimum range of temperature.

 true
As light increases the rate of photosynthesis? initially increases, then levels off to a plateau
As light intensity increase the rate of photosynthesis? Initially increases then levels off. ( the rate of
photosynthesis) Hope that helped!! Will increasing the intensity of light decrease the rate of photosynthesis? No, it doesn't. Increasing the intensity of light increases the
rate of photosynthesis
How does carbon dioxide effect the rate of photosynthesis? Too much can decrease the rate of Photosynthesis... Apparently..
<><><> Plants NEED CO2 to conduct photosynthesis. Increasing CO2
increases the rate of photosynthesis- to a point.

true
As light increases the rate of photosynthesis? initially increases, then levels off to a plateau
As light intensity increase the rate of photosynthesis? Initially increases then levels off. ( the rate of
photosynthesis) Hope that helped!! Will increasing the intensity of light decrease the rate of photosynthesis? No, it doesn't. Increasing the intensity of light increases the
rate of photosynthesis
How does carbon dioxide effect the rate of photosynthesis? Too much can decrease the rate of Photosynthesis... Apparently..
<><><> Plants NEED CO2 to conduct photosynthesis. Increasing CO2
increases the rate of photosynthesis- to a point.

GCSE Science/Photosynthesis - Wikibooks, open books for an open world GCSE Science/Photosynthesis
GCSE Science/Photosynthesis
Contents
Photosynthesis
Photosystems
Cyclic Photophosphorylation
Accessory pigments are able to funnel energy into reaction center
Limiting Factors
The Structure of a leaf
Respiration in plants
Respiration:
Photosynthesis:
Uses of glucose
The ability to convert light into chemical energy is ancient
 The Concentration of Carbon Dioxide
The Light Intensity
The Temperature
Any factor that influences the production of chlorophyll, enzymes, or energy carriers (ATP and NADPH). We can achieve a better rate of photosynthesis, if more CO2 is in the air, and if its content was less than the process needed, photosynthesis couldn't happen normally. It is hypothesized that global warming due to increased CO2 might increase plant growth. Light intensity is another rate factor for photosynthesis. We can increase the light intensity in order to achieve more photosynthesis. But we need to know that where the plant has reached maximum photosynthesis levels, since any increase in light intensity will not affect the plant further. Photosynthesis will occur faster in area with high temperature. But on the other hand, humidity can also affect the photosynthesis. When the air is saturated with water vapour, photosynthesis is limited. This is because at saturation levels, the air cannot absorb more moisture from the plants when they open the stoma to exchange gases.

GCSE Science/Photosynthesis - Wikibooks, open books for an open world

GCSE Science/Photosynthesis
GCSE Science/Photosynthesis
Contents
Photosynthesis
Photosystems
Cyclic Photophosphorylation
Accessory pigments are able to funnel energy into reaction center
Limiting Factors
The Structure of a leaf
Respiration in plants
Respiration:
Photosynthesis:
Uses of glucose
The ability to convert light into chemical energy is ancient

The Concentration of Carbon Dioxide
The Light Intensity
The Temperature
Any factor that influences the production of chlorophyll, enzymes, or energy carriers (ATP and NADPH). We can achieve a better rate of photosynthesis, if more CO2 is in the air, and if its content was less than the process needed, photosynthesis couldn't happen normally. It is hypothesized that global warming due to increased CO2 might increase plant growth. Light intensity is another rate factor for photosynthesis. We can increase the light intensity in order to achieve more photosynthesis. But we need to know that where the plant has reached maximum photosynthesis levels, since any increase in light intensity will not affect the plant further. Photosynthesis will occur faster in area with high temperature. But on the other hand, humidity can also affect the photosynthesis. When the air is saturated with water vapour, photosynthesis is limited. This is because at saturation levels, the air cannot absorb more moisture from the plants when they open the stoma to exchange gases.

Unit 5; Photosynthesis, Transpiration and Cell Respiration Flashcards | Quizlet Unit 5; Photosynthesis, Transpiration and Cell Respiration
Unit 5; Photosynthesis, Transpiration and Cell Respiration
Terms in this set (54)
 Light intensity. 2. Carbon dioxide concentration. 3. Variation in temperature. Light Intensity
Low intensities = positive effect
High intensities = little/no effect
Carbon Dioxide Concentration
Low concentration = positive effect
High concentration = little/no effect
Variation in Temperature
Works best at its optimum temperature. Related to optimum enzyme activity. Photosynthesis in a Glass House
Growers can control conditions by: - controlling the temperature. - providing artificial light.

Unit 5; Photosynthesis, Transpiration and Cell Respiration Flashcards | Quizlet

Unit 5; Photosynthesis, Transpiration and Cell Respiration
Unit 5; Photosynthesis, Transpiration and Cell Respiration
Terms in this set (54)

Light intensity. 2. Carbon dioxide concentration. 3. Variation in temperature. Light Intensity
Low intensities = positive effect
High intensities = little/no effect
Carbon Dioxide Concentration
Low concentration = positive effect
High concentration = little/no effect
Variation in Temperature
Works best at its optimum temperature. Related to optimum enzyme activity. Photosynthesis in a Glass House
Growers can control conditions by: - controlling the temperature. - providing artificial light.

Effect of Light intensity on the rate of Photosynthesis - Biology Notes for IGCSE 2014
#41 Effect of Light intensity on the rate of Photosynthesis
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 Effect of Light intensity on the rate of Photosynthesis - Biology Notes for IGCSE 2014

#41 Effect of Light intensity on the rate of Photosynthesis
Plants need light energy to make the chemical energy needed to create carbohydrates. Increasing the light intensity will boost the speed of photosynthesis. However, at high light intensities the rate becomes constant. Experiment
Place a pond weed Elodea upside in a test tube containing water. Place the tube in a beaker of fresh water at 25°C. This helps to maintain a constant temperature around the pond weed. Place excess sodium bicarbonate (NaHCO3) in the water to give a constant saturated solution of CO2. Place the lamp (the only light source) at distance from the plant. Count the number of oxygen bubbles given off by the plant in 1 minute period. This is the rate of photosynthesis at that particular light intensity.

Effect of Light intensity on the rate of Photosynthesis - Biology Notes for IGCSE 2014

#41 Effect of Light intensity on the rate of Photosynthesis
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Also on Biology Notes for IGCSE
Air pollution
Homeostasis
All Notes
Conservation, recycling sewage
11 Homeostasis
Genetic engineering
Voluntary, involuntary actions
Summary
Log in with
Loveleh jubleh

Effect of Light intensity on the rate of Photosynthesis - Biology Notes for IGCSE 2014

#41 Effect of Light intensity on the rate of Photosynthesis
Plants need light energy to make the chemical energy needed to create carbohydrates. Increasing the light intensity will boost the speed of photosynthesis. However, at high light intensities the rate becomes constant. Experiment
Place a pond weed Elodea upside in a test tube containing water. Place the tube in a beaker of fresh water at 25°C. This helps to maintain a constant temperature around the pond weed. Place excess sodium bicarbonate (NaHCO3) in the water to give a constant saturated solution of CO2. Place the lamp (the only light source) at distance from the plant. Count the number of oxygen bubbles given off by the plant in 1 minute period. This is the rate of photosynthesis at that particular light intensity.

Effect of Light intensity on the rate of Photosynthesis - Biology Notes for IGCSE 2014
#41 Effect of Light intensity on the rate of Photosynthesis
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Loveleh jubleh
 Effect of Light intensity on the rate of Photosynthesis - Biology Notes for IGCSE 2014

#41 Effect of Light intensity on the rate of Photosynthesis
Plants need light energy to make the chemical energy needed to create carbohydrates. Increasing the light intensity will boost the speed of photosynthesis. However, at high light intensities the rate becomes constant. Experiment
Place a pond weed Elodea upside in a test tube containing water. Place the tube in a beaker of fresh water at 25°C. This helps to maintain a constant temperature around the pond weed. Place excess sodium bicarbonate (NaHCO3) in the water to give a constant saturated solution of CO2. Place the lamp (the only light source) at distance from the plant. Count the number of oxygen bubbles given off by the plant in 1 minute period. This is the rate of photosynthesis at that particular light intensity.

#41 Effect of Light intensity on the rate of Photosynthesis
This post on blogspot.com
Also on Biology Notes for IGCSE
Drugs
Tropism in plants
Fertilisation
Homeostasis
10 Excretion
Air pollution
Food chain
Aerobic, anaerobic
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Loveleh jubleh

This Law states that the rate of a physiological process will be limited by the factor which is in the shortest supply. In the same way, the rate of photosynthesis is also affected by a number of factors, which are namely; Light
As the intensity of light increases, the rate of light-dependent reactions of photosynthesis and in turn, the rate of photosynthesis increases. With increased light intensity, the number of photons falling on a leaf also increases. As a result, more chlorophyll molecules are ionized, and more ATPs and NADH are generated. After a point, however, the rate of photosynthesis remains constant as the light intensity increases. At this point, photosynthesis is limited by some other factors. Besides, the wavelength of light also affects the rate of photosynthesis. Different photosynthetic systems absorb light energy more effectively at different wavelengths. Carbon dioxide
An increase in the concentration of carbon dioxide increases the rate at which carbon is incorporated into carbohydrates in the light-independent reactions of photosynthesis.

Does raising the light intensity increase the rate of... | 123 Help Me Does raising the light intensity increase the rate of photosynthesis?
Does raising the light intensity increase the rate of photosynthesis? Does raising the light intensity increase the rate of... | 123 Help Me
Does raising the light intensity increase the rate of photosynthesis? Does raising the light intensity increase the rate of photosynthesis? Aim: To see if raising the light intensity increases the rate of
photosynthesis. Prediction: I predict that raising the light intensity will increase
the rate of photosynthesis. I think this because light is the most
important thing needed for photosynthesis. I then think that the rate
of photosynthesis will stay the same when it reaches a certain point. I think this because the plant may use up all of the carbon dioxide
(Sodium hydro carbonate) and the plant can have as much light as it
needs but if it does not have any carbon dioxide it will not be able
to photosynthesise. The temperature also has to be right.

Does raising the light intensity increase the rate of... | 123 Help Me

Does raising the light intensity increase the rate of photosynthesis?
Does raising the light intensity increase the rate of photosynthesis?

Does raising the light intensity increase the rate of... | 123 Help Me
Does raising the light intensity increase the rate of photosynthesis? Does raising the light intensity increase the rate of photosynthesis? Aim: To see if raising the light intensity increases the rate of
photosynthesis. Prediction: I predict that raising the light intensity will increase
the rate of photosynthesis. I think this because light is the most
important thing needed for photosynthesis. I then think that the rate
of photosynthesis will stay the same when it reaches a certain point. I think this because the plant may use up all of the carbon dioxide
(Sodium hydro carbonate) and the plant can have as much light as it
needs but if it does not have any carbon dioxide it will not be able
to photosynthesise. The temperature also has to be right.

#105 Limiting factors in photosynthesis | Biology Notes for A level #105 Limiting factors in photosynthesis
30 August 2015
#105 Limiting factors in photosynthesis
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Limiting Factors of Photosynthesis
 If the levels of the limiting factor increase so that this factor is no longer the furthest from its optimum level, the limiting factor will change to the factor which is at that point in time, the furthest from its optimum level. For example, at night the limiting factor is likely to be the light intensity as this will be the furthest from its optimum level. During the day, the limiting factor is likely to switch to the temperature or the carbon dioxide concentration as the light intensity increases. Effects of changes in light intensity, CO2, H2O and temperature on the rate of photosynthesis
1. Light intensity
This affects the rate of the light-dependent reaction. The energy that drives this process is light energy. When the light intensity is poor, there is a shortage of ATP and NADPH, as these are products from the light dependent reactions. Without these products the light independent reactions can't occur as glycerate 3-phosphate cannot be reduced. Therefore a shortage of these products will limit the rate of photosynthesis. 2.

#105 Limiting factors in photosynthesis | Biology Notes for A level

#105 Limiting factors in photosynthesis
30 August 2015
#105 Limiting factors in photosynthesis
Video: Limiting factors of photosynthesis
Limiting Factors of Photosynthesis

If the levels of the limiting factor increase so that this factor is no longer the furthest from its optimum level, the limiting factor will change to the factor which is at that point in time, the furthest from its optimum level. For example, at night the limiting factor is likely to be the light intensity as this will be the furthest from its optimum level. During the day, the limiting factor is likely to switch to the temperature or the carbon dioxide concentration as the light intensity increases. Effects of changes in light intensity, CO2, H2O and temperature on the rate of photosynthesis
1. Light intensity
This affects the rate of the light-dependent reaction. The energy that drives this process is light energy. When the light intensity is poor, there is a shortage of ATP and NADPH, as these are products from the light dependent reactions. Without these products the light independent reactions can't occur as glycerate 3-phosphate cannot be reduced. Therefore a shortage of these products will limit the rate of photosynthesis. 2.

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Related Questions
Does increasing the light intensity decreases the rate of photosynthesis? no
How does increasing light intensity affect the rate of photosynthesis? The increase in light intensity increases the rate of
photosynthesis but, once it reaches the light saturation point the
rate of photosynthesis decreases. Increasing light intensity decreases the rate of photosynthesis? false
What is the rate of photosynthesis when the weather becomes very cold? decreases
What would happen to the rate of photosynthesis if the concentration of carbon dioxide decreases? It decreases with it. CO2 is essential for it
Explain the change in rate of photosynthesis as the water temperature increased from 18 degrees to 31 degrees? Rate of photosynthesis decreases because the tissues which helps
in transport of water stop transporting due to increase in
temperature and hence change in rate of photosynthesis
decreases. What mostly happens to the rate of photosynthesis as white light levels are decreased?

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Related Questions
Does increasing the light intensity decreases the rate of photosynthesis? no
How does increasing light intensity affect the rate of photosynthesis? The increase in light intensity increases the rate of
photosynthesis but, once it reaches the light saturation point the
rate of photosynthesis decreases. Increasing light intensity decreases the rate of photosynthesis? false
What is the rate of photosynthesis when the weather becomes very cold? decreases
What would happen to the rate of photosynthesis if the concentration of carbon dioxide decreases? It decreases with it. CO2 is essential for it
Explain the change in rate of photosynthesis as the water temperature increased from 18 degrees to 31 degrees? Rate of photosynthesis decreases because the tissues which helps
in transport of water stop transporting due to increase in
temperature and hence change in rate of photosynthesis
decreases. What mostly happens to the rate of photosynthesis as white light levels are decreased?

What are some factors that may slow down or speed up the rate of photosynthesis? | Yahoo Answers What are some factors that may slow down or speed up the rate of photosynthesis?
What are some factors that may slow down or speed up the rate of photosynthesis?
4 Answers
 Color of light: Violet, blue and a portion of red light produce the highest rate. Other colors are poorly absorbed and would produce very little photosynthesis. 3. Concentration of carbon dioxide: The higher the concentration the faster the rate up to the point of saturation. 4. Temperature: The higher the temperature the faster the rate up to the point that heat damages the enzymes and stops the processes. 5.

What are some factors that may slow down or speed up the rate of photosynthesis? | Yahoo Answers

What are some factors that may slow down or speed up the rate of photosynthesis?
What are some factors that may slow down or speed up the rate of photosynthesis?
4 Answers

Color of light: Violet, blue and a portion of red light produce the highest rate. Other colors are poorly absorbed and would produce very little photosynthesis. 3. Concentration of carbon dioxide: The higher the concentration the faster the rate up to the point of saturation. 4. Temperature: The higher the temperature the faster the rate up to the point that heat damages the enzymes and stops the processes. 5.

Limiting factors of photosynthesis - Photosynthesis - National 5 Biology Revision - BBC Bitesize Limiting factors of photosynthesis
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Photosynthesis
Photosynthesis is the process by which green plants use sunlight energy to make their own food. It takes place inside the chloroplasts of plant cells. Part of
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Limiting factors of photosynthesis
A limiting factor is simply anything in short supply that prevents photosynthesis occurring at its maximum rate. If photosynthesis occurs more slowly in plant cells then a lower quantity of sugar will be produced and the quantity of chemical energy available for cell growth will be reduced. There are three important factors that can limit the rate of photosynthesis: Light intensity
Carbon dioxide concentration
Temperature
It is useful to be able to interpret a graph like the example below. This graph shows the effect of light intensity on the rate of photosynthesis at two different carbon dioxide concentrations. Light intensity is limiting the rate of photosynthesis at light intensities of 0 to 3.75 units. As light intensity is increased the rate of photosynthesis increases. At light intensities of 3.75 to 5.5, a carbon dioxide concentration of 0.03 per cent is insufficient and limits the rate of photosynthesis.

Limiting factors of photosynthesis - Photosynthesis - National 5 Biology Revision - BBC Bitesize

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Limiting factors of photosynthesis
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Importance of Light in Photosynthesis (Theory) : Class 10 : Biology : Amrita Online Lab Objective
Objective
The Theory
The Process of Photosynthesis
Where does Photosynthesis occur?
Role of the colour of light during Photosynthesis
Factors affecting Photosynthesis
Learning Outcomes
 The light that is absorbed the best is blue, so this shows the highest rate of photosynthesis, after which comes red light. Green light cannot be absorbed by the plant, and thus cannot be used for photosynthesis. Chlorophyll looks green because it absorbs red and blue light, making these colours unavailable to be seen by our eyes. It is the green light which is not absorbed that finally reaches our eyes, making the chlorophyll appear green. Factors affecting Photosynthesis
For a constant rate of photosynthesis, various factors are needed at an optimum level. Here are some of the factors affecting photosynthesis. Light Intensity: An increased light intensity leads to a high rate of photosynthesis and a low light intensity would mean low rate of photosynthesis. Concentration of CO 2: Higher carbon dioxide concentration increases the rate of photosynthesis.

Importance of Light in Photosynthesis (Theory) : Class 10 : Biology : Amrita Online Lab

Objective
Objective
The Theory
The Process of Photosynthesis
Where does Photosynthesis occur?
Role of the colour of light during Photosynthesis
Factors affecting Photosynthesis
Learning Outcomes

The light that is absorbed the best is blue, so this shows the highest rate of photosynthesis, after which comes red light. Green light cannot be absorbed by the plant, and thus cannot be used for photosynthesis. Chlorophyll looks green because it absorbs red and blue light, making these colours unavailable to be seen by our eyes. It is the green light which is not absorbed that finally reaches our eyes, making the chlorophyll appear green. Factors affecting Photosynthesis
For a constant rate of photosynthesis, various factors are needed at an optimum level. Here are some of the factors affecting photosynthesis. Light Intensity: An increased light intensity leads to a high rate of photosynthesis and a low light intensity would mean low rate of photosynthesis. Concentration of CO 2: Higher carbon dioxide concentration increases the rate of photosynthesis.

[Explained] Factors Affecting Photosynthesis [Explained] Factors Affecting Photosynthesis
[Explained] Factors Affecting Photosynthesis
Light
Carbon Dioxide Concentration
Temperature
Water
 Trees in those forests need to  compete each other for available resources just like in a normal population  of humans. Increase in incident light beyond a point results in the decrease of  photosynthesis due to the breakdown of chlorophyll. Carbon Dioxide Concentration
The major limiting factor for photosynthesis is Carbon Dioxide (CO2). As  the carbon dioxide concentration is very low in the atmosphere. In  percentage terms it can be put somewhere between 0.03 to 0.04 per  cent. Just like any other factor, too much of carbon dioxide is also detrimental  to the plant. If the concentration reaches 0.05 per cent it results in the  increase of the rate of photosynthesis. The C3 and C4 plants respond differently to CO2 concentrations. At low light conditions neither group responds to high CO2 conditions. At high  intensities, both C3 and C4 plants show increase in the rates of  photosynthesis.

[Explained] Factors Affecting Photosynthesis

[Explained] Factors Affecting Photosynthesis
[Explained] Factors Affecting Photosynthesis
Light
Carbon Dioxide Concentration
Temperature
Water

Trees in those forests need to  compete each other for available resources just like in a normal population  of humans. Increase in incident light beyond a point results in the decrease of  photosynthesis due to the breakdown of chlorophyll. Carbon Dioxide Concentration
The major limiting factor for photosynthesis is Carbon Dioxide (CO2). As  the carbon dioxide concentration is very low in the atmosphere. In  percentage terms it can be put somewhere between 0.03 to 0.04 per  cent. Just like any other factor, too much of carbon dioxide is also detrimental  to the plant. If the concentration reaches 0.05 per cent it results in the  increase of the rate of photosynthesis. The C3 and C4 plants respond differently to CO2 concentrations. At low light conditions neither group responds to high CO2 conditions. At high  intensities, both C3 and C4 plants show increase in the rates of  photosynthesis.

Factors Affecting The Rate Of Photosynthesis Biology Essay Factors Affecting The Rate Of Photosynthesis Biology Essay
Factors Affecting The Rate Of Photosynthesis Biology Essay
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Aim
Hypothesis
Introduction
Apparatus needed for the Experiment
Light Intensity = 1 / Distance² (m)
Rate of the Reaction = 1 / Time (s)
Results
Molarity of NaHCO3
Light Intensity 1/d² (m)
0.00
(Distilled water)
0.01
0.02
0.05
0.07
Rate Of the Reaction = 1 / Time (s) x 1000
Molarity of NaHCO3
Light Intensity 1/d² (m)
0.00
(Distilled water)
0.01
0.02
0.05
0.07
Graph1.
Analysis & Discussion of Results
Analysis:
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Discussion:
Limitations and Improvement
Conclusion
Cite This Work
DMCA / Removal Request
 As the concentration of NaHCO3 increases the rate of the reaction will also increase at a proportional rate. Introduction
Every species on earth needs some kind of energy source in order to survive. In animal cells, the mitochondria produce ATP from cellular respiration. However, the plant cells have a different type of center that produces energy-chloroplasts. Plants go through the process of photosynthesis. The main process of photosynthesis is the absorption of light by chlorophyll, found in leaves and the immersion of carbon dioxide from the environment, and together they produce oxygen and sugar (energy). The equation below represents the photosynthesis reaction: The purpose of this experiment is to test whether factors such as light intensity and level of Carbon dioxide, will affect the rate of photosynthesis, which are the two most important variables in the photosynthesis process. This was demonstrated by Robert Hill in 1938, known as “The Hill Reaction”. Robert Hill and his associates at the University of Illinois found that the photosynthetic rate varies with light intensity, and as the light intensity increases, the reaction rate also increases up to a certain point.

Factors Affecting The Rate Of Photosynthesis Biology Essay

Factors Affecting The Rate Of Photosynthesis Biology Essay
Factors Affecting The Rate Of Photosynthesis Biology Essay
Get Help With Your Essay
Aim
Hypothesis
Introduction
Apparatus needed for the Experiment
Light Intensity = 1 / Distance² (m)
Rate of the Reaction = 1 / Time (s)
Results
Molarity of NaHCO3
Light Intensity 1/d² (m)
0.00
(Distilled water)
0.01
0.02
0.05
0.07
Rate Of the Reaction = 1 / Time (s) x 1000
Molarity of NaHCO3
Light Intensity 1/d² (m)
0.00
(Distilled water)
0.01
0.02
0.05
0.07
Graph1.
Analysis & Discussion of Results
Analysis:
Find out how UKEssays.com can help you!
Discussion:
Limitations and Improvement
Conclusion
Cite This Work
DMCA / Removal Request

As the concentration of NaHCO3 increases the rate of the reaction will also increase at a proportional rate. Introduction
Every species on earth needs some kind of energy source in order to survive. In animal cells, the mitochondria produce ATP from cellular respiration. However, the plant cells have a different type of center that produces energy-chloroplasts. Plants go through the process of photosynthesis. The main process of photosynthesis is the absorption of light by chlorophyll, found in leaves and the immersion of carbon dioxide from the environment, and together they produce oxygen and sugar (energy). The equation below represents the photosynthesis reaction: The purpose of this experiment is to test whether factors such as light intensity and level of Carbon dioxide, will affect the rate of photosynthesis, which are the two most important variables in the photosynthesis process. This was demonstrated by Robert Hill in 1938, known as “The Hill Reaction”. Robert Hill and his associates at the University of Illinois found that the photosynthetic rate varies with light intensity, and as the light intensity increases, the reaction rate also increases up to a certain point.

Light Independent Reactions in Photosynthesis You'll Remember | Quizlet Light Independent Reactions in Photosynthesis
Light Independent Reactions in Photosynthesis
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Key concepts:
Terms in this set (10)
THIS SET IS OFTEN IN FOLDERS WITH...
Cellular Respiration
Cumulative Exam
Cellular Respiration
Biology, Light Independent Reactions in Photosynth…
 In the chemical equation for photosynthesis, carbon dioxide and water are converted to glucose and oxygen. 6CO2 + 6H2O ® C6H12O6 + 6O2
Which component could be added to complete this chemical equation? light energy
ATP and NADPH
chemical energy
rubisco
light energy
What is required for both the light-dependent and light-independent reactions to proceed? energy
CO2
water
ATP and NADPH
energy
Which is the best hypothesis for the scientific question "How does light intensity affect the rate of photosynthesis?" Light intensity, CO2 concentration, and temperature are factors that determine the rate of photosynthesis. Light intensity has no effect on the rate of photosynthesis. If the distance between the source of light and the plant is increased, the rate of photosynthesis will decrease. Light intensity has an impact on the rate of photosynthesis. If the distance between the source of light and the plant is increased, the rate of photosynthesis will decrease. Which process occurs during the light-dependent reactions in photosynthesis?

Light Independent Reactions in Photosynthesis You'll Remember | Quizlet

Light Independent Reactions in Photosynthesis
Light Independent Reactions in Photosynthesis
PLAY
Key concepts:
Terms in this set (10)
THIS SET IS OFTEN IN FOLDERS WITH...
Cellular Respiration
Cumulative Exam
Cellular Respiration
Biology, Light Independent Reactions in Photosynth…

In the chemical equation for photosynthesis, carbon dioxide and water are converted to glucose and oxygen. 6CO2 + 6H2O ® C6H12O6 + 6O2
Which component could be added to complete this chemical equation? light energy
ATP and NADPH
chemical energy
rubisco
light energy
What is required for both the light-dependent and light-independent reactions to proceed? energy
CO2
water
ATP and NADPH
energy
Which is the best hypothesis for the scientific question "How does light intensity affect the rate of photosynthesis?" Light intensity, CO2 concentration, and temperature are factors that determine the rate of photosynthesis. Light intensity has no effect on the rate of photosynthesis. If the distance between the source of light and the plant is increased, the rate of photosynthesis will decrease. Light intensity has an impact on the rate of photosynthesis. If the distance between the source of light and the plant is increased, the rate of photosynthesis will decrease. Which process occurs during the light-dependent reactions in photosynthesis?

Light Intensity and Rate of Photosynthesis (Carol Cao) - sed695b3 Light Intensity and Rate of Photosynthesis (Carol Cao)
Light Intensity and Rate of Photosynthesis (Carol Cao)
Research Question and Hypothesis
Standards
Experimental Design
Independent variable
Dependent variables
Series
Constants and Controls
Materials
Procedures
Sample data and graphs
rate of photosynthesis lab results
Light Intensity and the Rate of Photosynthesis
Rate of Photosynthesis Lab
Oxygen Production in Elodea Plants
 Light Intensity and Rate of Photosynthesis (Carol Cao) - sed695b3

Projects  >  (3) Longitudinal Research  >
Light Intensity and Rate of Photosynthesis (Carol Cao)
Research Question and Hypothesis
Does light intensity affect the rate of photosynthesis in Elodea plants? Hypothesis: Yes, light intensity does affect the rate of photosynthesis. Too much light may cause plants to "burn out" while too little light will not provide enough light for optimal photosynthesis activity. Standards
Biology Standards
Students know usable energy is captured from sunlight by chloroplasts and is stored through the synthesis of sugar from carbon dioxide. Experimental Design
This experiment will look at the affect of light intensity on the rate of photosynthesis on Elodea plants. The rate of photosynthesis is determined by the number of bubbles formed by the Elodea plants. The
oxygen bubbles are a product of photosynthesis. Plants have shown to produce more bubbles when
placed closer to a light source than further away. The efficiency of photosynthesis can be measured
by the amount of oxygen bubbles formed during a given amount of time.

Light Intensity and Rate of Photosynthesis (Carol Cao) - sed695b3

Light Intensity and Rate of Photosynthesis (Carol Cao)
Light Intensity and Rate of Photosynthesis (Carol Cao)
Research Question and Hypothesis
Standards
Experimental Design
Independent variable
Dependent variables
Series
Constants and Controls
Materials
Procedures
Sample data and graphs
rate of photosynthesis lab results
Light Intensity and the Rate of Photosynthesis
Rate of Photosynthesis Lab
Oxygen Production in Elodea Plants

Light Intensity and Rate of Photosynthesis (Carol Cao) - sed695b3

Projects  >  (3) Longitudinal Research  >
Light Intensity and Rate of Photosynthesis (Carol Cao)
Research Question and Hypothesis
Does light intensity affect the rate of photosynthesis in Elodea plants? Hypothesis: Yes, light intensity does affect the rate of photosynthesis. Too much light may cause plants to "burn out" while too little light will not provide enough light for optimal photosynthesis activity. Standards
Biology Standards
Students know usable energy is captured from sunlight by chloroplasts and is stored through the synthesis of sugar from carbon dioxide. Experimental Design
This experiment will look at the affect of light intensity on the rate of photosynthesis on Elodea plants. The rate of photosynthesis is determined by the number of bubbles formed by the Elodea plants. The
oxygen bubbles are a product of photosynthesis. Plants have shown to produce more bubbles when
placed closer to a light source than further away. The efficiency of photosynthesis can be measured
by the amount of oxygen bubbles formed during a given amount of time.

Factors affecting photosynthesis - Photosynthesis - OCR Gateway - GCSE Combined Science Revision - OCR Gateway - BBC Bitesize Factors affecting photosynthesis
Photosynthesis
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Factors affecting photosynthesis
Light intensity
Carbon dioxide concentration
Temperature
Chlorophyll
The compensation point
 previous
next
previous
next
At low light intensities the increase in the rate of photosynthesis is linear
previous
next
At some point a factor becomes limiting. For instance, if carbon dioxide becomes the limiting factor the supply of carbon dioxide is not sufficient to keep pace with the increasing rate of reaction. previous
next
Any additional increase in light intensity will not increase the rate of reaction any further. At very high light intensities, photosynthesis is slowed and then inhibited, but these light intensities do not occur in nature. Carbon dioxide concentration
Carbon dioxide - with water - is one of the reactants in photosynthesis. If the concentration of carbon dioxide is increased, the rate of photosynthesis will therefore increase. Again, at some point, a factor may become limiting. Temperature
The chemical reactions that combine carbon dioxide and water to produce glucose are controlled by enzymes. As with any other enzyme-controlled reaction, the rate of photosynthesis is affected by temperature. At low temperatures, the rate of photosynthesis is limited by the number of molecular collisions between enzymes and substrates.

Factors affecting photosynthesis - Photosynthesis - OCR Gateway - GCSE Combined Science Revision - OCR Gateway - BBC Bitesize

Factors affecting photosynthesis
Photosynthesis
Add to My Bitesize
Factors affecting photosynthesis
Light intensity
Carbon dioxide concentration
Temperature
Chlorophyll
The compensation point

previous
next
previous
next
At low light intensities the increase in the rate of photosynthesis is linear
previous
next
At some point a factor becomes limiting. For instance, if carbon dioxide becomes the limiting factor the supply of carbon dioxide is not sufficient to keep pace with the increasing rate of reaction. previous
next
Any additional increase in light intensity will not increase the rate of reaction any further. At very high light intensities, photosynthesis is slowed and then inhibited, but these light intensities do not occur in nature. Carbon dioxide concentration
Carbon dioxide - with water - is one of the reactants in photosynthesis. If the concentration of carbon dioxide is increased, the rate of photosynthesis will therefore increase. Again, at some point, a factor may become limiting. Temperature
The chemical reactions that combine carbon dioxide and water to produce glucose are controlled by enzymes. As with any other enzyme-controlled reaction, the rate of photosynthesis is affected by temperature. At low temperatures, the rate of photosynthesis is limited by the number of molecular collisions between enzymes and substrates.

Factors affecting the rate of photosynthesis - Pass My Exams: Easy exam revision notes for GSCE Biology Factors affecting the rate of photosynthesis
Factors affecting the rate of photosynthesis
3. Carbon Dioxide
 It is difficult to do this out in the open air but is possible in a greenhouse. The rate of photosynthesis increases linearly with increasing carbon dioxide concentration (from point A to B on the graph). Gradually the rate falls of and at a certain carbon dioxide concentration the rate of photosynthesis stays constant (from point B to C on the graph). Here a rise in carbon dioxide levels has no affect on the rate of photosynthesis as the other factors such as light intensity become limiting. Many crops such as tomatoes and lettuce give higher yield when grown in greenhouses. Farmers add additional carbon dioxide into the greenhouse to increase the concentration and so the rate of photosynthesis of the crops. The additional cost of the carbon dioxide is worthwhile because of the increased yield. Some companies have used this to great environmental use. Rather than pump waste carbon dioxide into the atmosphere as a pollutant they redirect it into big greenhouses where plants such as tomatoes use it during photosynthesis. This not only reduces their carbon footprint but gives an additional profitable product.

Factors affecting the rate of photosynthesis - Pass My Exams: Easy exam revision notes for GSCE Biology

Factors affecting the rate of photosynthesis
Factors affecting the rate of photosynthesis
3. Carbon Dioxide

It is difficult to do this out in the open air but is possible in a greenhouse. The rate of photosynthesis increases linearly with increasing carbon dioxide concentration (from point A to B on the graph). Gradually the rate falls of and at a certain carbon dioxide concentration the rate of photosynthesis stays constant (from point B to C on the graph). Here a rise in carbon dioxide levels has no affect on the rate of photosynthesis as the other factors such as light intensity become limiting. Many crops such as tomatoes and lettuce give higher yield when grown in greenhouses. Farmers add additional carbon dioxide into the greenhouse to increase the concentration and so the rate of photosynthesis of the crops. The additional cost of the carbon dioxide is worthwhile because of the increased yield. Some companies have used this to great environmental use. Rather than pump waste carbon dioxide into the atmosphere as a pollutant they redirect it into big greenhouses where plants such as tomatoes use it during photosynthesis. This not only reduces their carbon footprint but gives an additional profitable product.

bio quiz #6 Flashcards | Quizlet bio quiz #6
bio quiz #6
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Terms in this set (57)
 How does CO2 level affect oxygen production? When the CO2 levels are low there is little to no oxygen production, when the CO2 levels are higher there is lots of oxygen production. How does oxygen production relate to the rate of photosynthesis? Oxygen production relates to the rate of photosynthesis because when there is a high oxygen production there is a high rate of photosynthesis. During photosynthesis, light energy is used to synthesize carbon dioxide (CO2) and water (H2O) into glucose (C6H12O6) and oxygen (O2). The complex series of chemical reactions is summarized by the following formula: 6CO2 + 6H2O + light energy 🡪 C6H12O6 + 6O2
In the Gizmo, what light intensity and CO2 level do you think will maximize the rate of photosynthesis? I think the highest light intensity and CO2 levels will maximize the rate of photosynthesis because that would cause the greatest amount of oxygen production, which will cause a rapid rate of photosynthesis. Use the Gizmo to find the ideal conditions for photosynthesis. Use any method you like.

bio quiz #6 Flashcards | Quizlet

bio quiz #6
bio quiz #6
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Terms in this set (57)

How does CO2 level affect oxygen production? When the CO2 levels are low there is little to no oxygen production, when the CO2 levels are higher there is lots of oxygen production. How does oxygen production relate to the rate of photosynthesis? Oxygen production relates to the rate of photosynthesis because when there is a high oxygen production there is a high rate of photosynthesis. During photosynthesis, light energy is used to synthesize carbon dioxide (CO2) and water (H2O) into glucose (C6H12O6) and oxygen (O2). The complex series of chemical reactions is summarized by the following formula: 6CO2 + 6H2O + light energy 🡪 C6H12O6 + 6O2
In the Gizmo, what light intensity and CO2 level do you think will maximize the rate of photosynthesis? I think the highest light intensity and CO2 levels will maximize the rate of photosynthesis because that would cause the greatest amount of oxygen production, which will cause a rapid rate of photosynthesis. Use the Gizmo to find the ideal conditions for photosynthesis. Use any method you like.

[Explained] Factors Affecting Photosynthesis [Explained] Factors Affecting Photosynthesis
[Explained] Factors Affecting Photosynthesis
Light
Carbon Dioxide Concentration
Temperature
Water
 Just like any other factor, too much of carbon dioxide is also detrimental  to the plant. If the concentration reaches 0.05 per cent it results in the  increase of the rate of photosynthesis. The C3 and C4 plants respond differently to CO2 concentrations. At low light conditions neither group responds to high CO2 conditions. At high  intensities, both C3 and C4 plants show increase in the rates of  photosynthesis. However there are also few differences that these plants  have. The C4 plants show saturation at about 360 , while the C3 plants  responds to increased CO2 concentration and saturation is seen only beyond  450. Thus, it can be said that the availability of CO2 levels is a limiting  factor for the C3 plants. You might have heard of greenhouse crops. When greenhouse crops like  tomatoes and bell pepper are grown in these, the availability of CO2 is very  high which results in a higher yield.

Just like any other factor, too much of carbon dioxide is also detrimental  to the plant. If the concentration reaches 0.05 per cent it results in the  increase of the rate of photosynthesis. The C3 and C4 plants respond differently to CO2 concentrations. At low light conditions neither group responds to high CO2 conditions. At high  intensities, both C3 and C4 plants show increase in the rates of  photosynthesis. However there are also few differences that these plants  have. The C4 plants show saturation at about 360 , while the C3 plants  responds to increased CO2 concentration and saturation is seen only beyond  450. Thus, it can be said that the availability of CO2 levels is a limiting  factor for the C3 plants. You might have heard of greenhouse crops. When greenhouse crops like  tomatoes and bell pepper are grown in these, the availability of CO2 is very  high which results in a higher yield.

As light intensity increases, what happens to the rate of photosynthesis? | Socratic As light intensity increases, what happens to the rate of photosynthesis?
As light intensity increases, what happens to the rate of photosynthesis?
1 Answer
mason m
Explanation:
 Even if more and more ATP and NADPH are being formed, they will not be able to act if more carbon dioxide isn't entering the plant. Thus, the plant reaches a "light saturation point" and the rate of photosynthesis is limited due to a limited amount of carbon dioxide, or due to some other limiting factor. The following image provides more nuance. It shows that light intensity and the rate of photosynthesis increase with one another. It also shows that the rate at which photosynthesis levels out is dependent upon other factors—both plants in 0.1% CO₂, they cannot photosynthesize at nearly the rate of the plants in 0.4% CO₂.
Similarly, plants photosynthesize at a greater rate in higher temperatures (generally—not in temperatures that are too hot—this is also dependent upon species). Answer link

As light intensity increases, what happens to the rate of photosynthesis? | Socratic

As light intensity increases, what happens to the rate of photosynthesis?
As light intensity increases, what happens to the rate of photosynthesis?
1 Answer
mason m
Explanation:

Even if more and more ATP and NADPH are being formed, they will not be able to act if more carbon dioxide isn't entering the plant. Thus, the plant reaches a "light saturation point" and the rate of photosynthesis is limited due to a limited amount of carbon dioxide, or due to some other limiting factor. The following image provides more nuance. It shows that light intensity and the rate of photosynthesis increase with one another. It also shows that the rate at which photosynthesis levels out is dependent upon other factors—both plants in 0.1% CO₂, they cannot photosynthesize at nearly the rate of the plants in 0.4% CO₂.
Similarly, plants photosynthesize at a greater rate in higher temperatures (generally—not in temperatures that are too hot—this is also dependent upon species). Answer link

Does Light Intensity increase the Rate of Photosynthesis? by Reona Ido Does Light Intensity increase the Rate of Photosynthesis?
Does Light Intensity increase the Rate of Photosynthesis?
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How does light intensity affect the Rate of Photosynthesis?
Limiting Factors
Hypothesis
How to conduct the experiment
Things Needed for the Experiment to work:
Michael Kwon, Reona Ido
Biology 11
Mr. Lawrence
Equation for Photosynthesis:
6 CO2 (g) + H2O (l) -> C6H12O6 (aq) + 6O2 (g)
Variables
 Does Light Intensity increase the Rate of Photosynthesis? by Reona Ido
Does Light Intensity increase the Rate of Photosynthesis? RI
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August 19, 2014
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The Scenario: Results were
Temperature
Carbon Dioxide Concentration
Set up the two plants in water solution (each plant has a light source with different voltage: 1Watts per gallon and 3Watts per gallon, make sure you use the variable power supply)
Set the timer to 1 min. Count the bubbles that forms in 1 min
Record results
2 Elodea plants
2 5 gallon water container
2 lamps
2 big beakers
Timer/stopwatch
2 variable power supply
Using bigger gallons so that the temperature wont increase/decrease easily (temperature affects the rate of photosynthesis)
Repeat experiment more than once
Human errors, e.g. recording of the time. increase the values of light intensity tested on the plant
Measurement is not too accurate. How can this be applied in the real world? Eutrophication (a process where water bodies receive excess nutrients that stimulate a bloom of algae)
Plants produce oxygen at a limited pace
Controls phytoplankton and moss.

Does Light Intensity increase the Rate of Photosynthesis? by Reona Ido

Does Light Intensity increase the Rate of Photosynthesis?
Does Light Intensity increase the Rate of Photosynthesis?
Outline
15 frames
Reader view
Experiment Complete!
Sources
Improvements to make
The Scenario:
How can this be applied in the real world?
Things to remember!
Graph
How does light intensity affect the Rate of Photosynthesis?
Limiting Factors
Hypothesis
How to conduct the experiment
Things Needed for the Experiment to work:
Michael Kwon, Reona Ido
Biology 11
Mr. Lawrence
Equation for Photosynthesis:
6 CO2 (g) + H2O (l) -> C6H12O6 (aq) + 6O2 (g)
Variables

Does Light Intensity increase the Rate of Photosynthesis? by Reona Ido
Does Light Intensity increase the Rate of Photosynthesis? RI
Published with reusable license by Reona Ido
August 19, 2014
4,563 views
Outline
15 frames
1
Save to library
View
4
Save to library
View
2
Save to library
View
5
Save to library
View
3
Save to library
View
6
Save to library
View
Reader view
Experiment Complete! Sources
Improvements to make
The Scenario: Results were
Temperature
Carbon Dioxide Concentration
Set up the two plants in water solution (each plant has a light source with different voltage: 1Watts per gallon and 3Watts per gallon, make sure you use the variable power supply)
Set the timer to 1 min. Count the bubbles that forms in 1 min
Record results
2 Elodea plants
2 5 gallon water container
2 lamps
2 big beakers
Timer/stopwatch
2 variable power supply
Using bigger gallons so that the temperature wont increase/decrease easily (temperature affects the rate of photosynthesis)
Repeat experiment more than once
Human errors, e.g. recording of the time. increase the values of light intensity tested on the plant
Measurement is not too accurate. How can this be applied in the real world? Eutrophication (a process where water bodies receive excess nutrients that stimulate a bloom of algae)
Plants produce oxygen at a limited pace
Controls phytoplankton and moss.

Photosynthesis / Cellular Respiration / Energy Flashcards | Quizlet Photosynthesis / Cellular Respiration / Energy
Photosynthesis / Cellular Respiration / Energy
Terms in this set (18)
 - Starch is stored in an organelle called Vacuole
What is meant by the 'rate of photosynthesis'? the process by which plants take carbon dioxide from the atmosphere, add water, and use the energy of sunlight to produce sugar. Main factors affecting the rate of photosynthesis
Light intensity: Without enough light, a plant cannot photosynthesize very quickly, even if there is plenty of water and carbon dioxide. Increasing the light intensity will boost the speed of photosynthesis. Carbon dioxide concentration: Sometimes photosynthesis is limited by the concentration of carbon dioxide in the air. Even if there is plenty of light, a plant cannot photosynthesize if there is insufficient carbon dioxide. Temperature: If it gets too cold, the rate of photosynthesis will decrease.

Photosynthesis / Cellular Respiration / Energy Flashcards | Quizlet

Photosynthesis / Cellular Respiration / Energy
Photosynthesis / Cellular Respiration / Energy
Terms in this set (18)

- Starch is stored in an organelle called Vacuole
What is meant by the 'rate of photosynthesis'? the process by which plants take carbon dioxide from the atmosphere, add water, and use the energy of sunlight to produce sugar. Main factors affecting the rate of photosynthesis
Light intensity: Without enough light, a plant cannot photosynthesize very quickly, even if there is plenty of water and carbon dioxide. Increasing the light intensity will boost the speed of photosynthesis. Carbon dioxide concentration: Sometimes photosynthesis is limited by the concentration of carbon dioxide in the air. Even if there is plenty of light, a plant cannot photosynthesize if there is insufficient carbon dioxide. Temperature: If it gets too cold, the rate of photosynthesis will decrease.

The Relationship between Light and Photosynthesis | Bartleby The Relationship between Light and Photosynthesis
The Relationship between Light and Photosynthesis
Photosynthesis And Cellular Respiration. Photosynthesis
Study Measuring Oxygen Production Of Spinacea Oleracea Using An Oxygen Electrode
The Effect Of Photosynthesis On The Rate Of Photosynthesis
The Effect Of Co2 Availability On Photosynthetic Rate Of Aquatic Plant
Biology 10 Testbank and Answers
The Effect Of Light And Plant Growth
Photosintersis Experiment
Leaf Lab
Leaflab Report Essay
Lab Report On Photosynthesis
 As light intensity increases, the photosynthetic rate of a plant increases as well. However biochemical reaction, in fact, DO have temperature limits because if the temperatures
Read More
Leaflab Report Essay
943 Words | 4 Pages
Marlena Ferone LeafLab Biology 101 - Professor Landry University of Phoenix Due Date: August 30, 2011  EXPLORATION  What is the relationship between the increase in light intensity and the photosynthetic rate in leaves from a corn plant? How does this relationship compare with what you observed for tomato plants? As light intensity increases, the photosynthetic rate of a plant increases as well. However biochemical reaction, in fact, DO have temperature limits because if the temperatures
Read More
Lab Report On Photosynthesis
1780 Words | 8 Pages
Abstract: Photosynthesis is a vital process that requires to utilize energy for plants. This experiment was done to evaluate the effects of carbon availability on photosynthetic activity. The aquatic plant Elodea densa was placed into sodium bicarbonate solutions of five concentrations ranging from 0.1% to 1.0%, in five independent trials (excluding the negative control treatment of water). The temperature and light intensity was constant.

The Relationship between Light and Photosynthesis | Bartleby

The Relationship between Light and Photosynthesis
The Relationship between Light and Photosynthesis
Photosynthesis And Cellular Respiration. Photosynthesis
Study Measuring Oxygen Production Of Spinacea Oleracea Using An Oxygen Electrode
The Effect Of Photosynthesis On The Rate Of Photosynthesis
The Effect Of Co2 Availability On Photosynthetic Rate Of Aquatic Plant
Biology 10 Testbank and Answers
The Effect Of Light And Plant Growth
Photosintersis Experiment
Leaf Lab
Leaflab Report Essay
Lab Report On Photosynthesis

As light intensity increases, the photosynthetic rate of a plant increases as well. However biochemical reaction, in fact, DO have temperature limits because if the temperatures
Read More
Leaflab Report Essay
943 Words | 4 Pages
Marlena Ferone LeafLab Biology 101 - Professor Landry University of Phoenix Due Date: August 30, 2011  EXPLORATION  What is the relationship between the increase in light intensity and the photosynthetic rate in leaves from a corn plant? How does this relationship compare with what you observed for tomato plants? As light intensity increases, the photosynthetic rate of a plant increases as well. However biochemical reaction, in fact, DO have temperature limits because if the temperatures
Read More
Lab Report On Photosynthesis
1780 Words | 8 Pages
Abstract: Photosynthesis is a vital process that requires to utilize energy for plants. This experiment was done to evaluate the effects of carbon availability on photosynthetic activity. The aquatic plant Elodea densa was placed into sodium bicarbonate solutions of five concentrations ranging from 0.1% to 1.0%, in five independent trials (excluding the negative control treatment of water). The temperature and light intensity was constant.

10 Major Factors Affecting Photosynthesis 10 Major Factors Affecting Photosynthesis
10 Major Factors Affecting Photosynthesis
The following points highlight the ten major factors affecting photosynthesis. The factors are: 1. Light 2. Carbon-Dioxide 3. Water 4. Nutrient Supply 5. Temperature 6. Oxygen Concentration 7. Chemical Compounds 8. Chlorophyll Content 9. Leaf Anatomy 10. Protoplasmic Factors.
Factor # 1. Light:
Light Intensity:
Photo-Oxidation:
Light Quality:
Duration of Light Period:
Factor # 2. Carbon-Dioxide:
Carbon Dioxide Supply:
Absorption of Carbon Dioxide:
Carbon Dioxide Concentration:
Factor # 3. Water:
Factor # 4. Nutrient Supply:
Factor # 5. Temperature:
They are as follows:
Factor # 6. Oxygen Concentration:
Factor # 7. Chemical Compounds:
Factor # 8. Chlorophyll Content:
Factor # 9. Leaf Anatomy:
Factor # 10. Protoplasmic Factors:
 A decline in rate was observed in higher concentrations. Blackman and his co-workers claimed that after an optimum concentration is reached, the rate of photosynthesis remains constant over a wide range of carbon dioxide concentrations. ADVERTISEMENTS: It has been demonstrated experimentally that at usual temperature and light intensities, artificial increase of carbon dioxide up to a concentration of 0.5 per cent may give an increased rate of photosynthesis, but only for a limited period. It appears that the high level of carbon dioxide is injurious to plants. Factor # 3. Water: Water is one of the raw material utilized in the process of photosynthesis. In land plants, the soil is the source of water. Only about one per cent or less of the water absorbed by the roots is actually used in photosynthesis.

10 Major Factors Affecting Photosynthesis

10 Major Factors Affecting Photosynthesis
10 Major Factors Affecting Photosynthesis
The following points highlight the ten major factors affecting photosynthesis. The factors are: 1. Light 2. Carbon-Dioxide 3. Water 4. Nutrient Supply 5. Temperature 6. Oxygen Concentration 7. Chemical Compounds 8. Chlorophyll Content 9. Leaf Anatomy 10. Protoplasmic Factors.
Factor # 1. Light:
Light Intensity:
Photo-Oxidation:
Light Quality:
Duration of Light Period:
Factor # 2. Carbon-Dioxide:
Carbon Dioxide Supply:
Absorption of Carbon Dioxide:
Carbon Dioxide Concentration:
Factor # 3. Water:
Factor # 4. Nutrient Supply:
Factor # 5. Temperature:
They are as follows:
Factor # 6. Oxygen Concentration:
Factor # 7. Chemical Compounds:
Factor # 8. Chlorophyll Content:
Factor # 9. Leaf Anatomy:
Factor # 10. Protoplasmic Factors:

A decline in rate was observed in higher concentrations. Blackman and his co-workers claimed that after an optimum concentration is reached, the rate of photosynthesis remains constant over a wide range of carbon dioxide concentrations. ADVERTISEMENTS: It has been demonstrated experimentally that at usual temperature and light intensities, artificial increase of carbon dioxide up to a concentration of 0.5 per cent may give an increased rate of photosynthesis, but only for a limited period. It appears that the high level of carbon dioxide is injurious to plants. Factor # 3. Water: Water is one of the raw material utilized in the process of photosynthesis. In land plants, the soil is the source of water. Only about one per cent or less of the water absorbed by the roots is actually used in photosynthesis.

how does carbon dioxide affect the rate of photosynthesis? | Yahoo Answers how does carbon dioxide affect the rate of photosynthesis?
how does carbon dioxide affect the rate of photosynthesis?
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 how does carbon dioxide affect the rate of photosynthesis? | Yahoo Answers
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asked in Science & Mathematics Biology · 9 years ago
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Carbon dioxide is needed in the dark reaction as a raw material used in the synthesis of glucose. As carbon dioxide concentration increases, the rate of photosynthesis increases. At high concentrations, the rate of photosynthesis begins to level out due to factors not related to carbon dioxide concentration. One reason might be that some of the enzymes of photosynthesis are working at their maximum rate. In general, carbon dioxide is found in low concentration in the atmosphere, and so atmospheric carbon dioxide levels may be a major limiting factor on photosynthesis when at low levels. ...Show more
Anonymous
4 years ago
mushy At highter mushy intensities, progressively the fee does no longer practice extra improve as diverse factors grow to be proscribing. mushy isn't a proscribing element for those in shade or in dense forests. improve in incident mushy previous the shrink motives the breakdown of chlorophyll and a decrease in photsynthesis.

how does carbon dioxide affect the rate of photosynthesis? | Yahoo Answers

how does carbon dioxide affect the rate of photosynthesis?
how does carbon dioxide affect the rate of photosynthesis?
2 Answers

how does carbon dioxide affect the rate of photosynthesis? | Yahoo Answers
Sarita
Sarita
asked in Science & Mathematics Biology · 9 years ago
how does carbon dioxide affect the rate of photosynthesis? 2 Answers
Relevance
Hareez
Lv 5
9 years ago
Favourite answer
Carbon dioxide is needed in the dark reaction as a raw material used in the synthesis of glucose. As carbon dioxide concentration increases, the rate of photosynthesis increases. At high concentrations, the rate of photosynthesis begins to level out due to factors not related to carbon dioxide concentration. One reason might be that some of the enzymes of photosynthesis are working at their maximum rate. In general, carbon dioxide is found in low concentration in the atmosphere, and so atmospheric carbon dioxide levels may be a major limiting factor on photosynthesis when at low levels. ...Show more
Anonymous
4 years ago
mushy At highter mushy intensities, progressively the fee does no longer practice extra improve as diverse factors grow to be proscribing. mushy isn't a proscribing element for those in shade or in dense forests. improve in incident mushy previous the shrink motives the breakdown of chlorophyll and a decrease in photsynthesis.

15 Main Factors Affecting Photosynthesis 15 Main Factors Affecting Photosynthesis
15 Main Factors Affecting Photosynthesis
Factor # 1. Temperature:
Factor # 2. Carbon Dioxide Concentrations:
Factor # 3. Light:
Factor # 4. Intensity:
Factor # 5. Quality:
Factor # 6. Duration:
Factor # 7. Oxygen:
Factor # 8. Water:
Factor # 9. Mineral Elements:
Factor # 10. Air Pollutants:
Factor # 11. Chemical Compounds:
Factor # 12. Chlorophyll Contents:
Factor # 13. Protoplasmic Factor:
Factor # 14. Accumulation of Carbohydrates:
Factor # 15. Blackman’s Principle of Limiting Factors:
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 Factor # 4. Intensity: When CO 2 and temperature are not limiting and light intensities are low, the rate of photosynthesis increases with an increase in its intensity. At a point saturation may be reached, when further increase in light intensity fails to induce increase in photosynthesis. Optimum or saturation intensities may vary with different plant species e.g., C 4 and C 3. C 3 plants become saturated at levels considerably lower than full sunlight but C 4 plants are usually not saturated at full sunlight. When the intensity of light falling on a photosynthesizing organ is increased beyond a certain point, the cells of that organ become vulnerable to chlorophyll catalyzed photo-oxidations. Consequently, these organs begin to consume O 2 instead of CO 2 and CO 2 is released. Photo-oxidation is maximal when O 2 is present or carotenoids are absent or CO 2 concentration is low. Factor # 5.

15 Main Factors Affecting Photosynthesis

15 Main Factors Affecting Photosynthesis
15 Main Factors Affecting Photosynthesis
Factor # 1. Temperature:
Factor # 2. Carbon Dioxide Concentrations:
Factor # 3. Light:
Factor # 4. Intensity:
Factor # 5. Quality:
Factor # 6. Duration:
Factor # 7. Oxygen:
Factor # 8. Water:
Factor # 9. Mineral Elements:
Factor # 10. Air Pollutants:
Factor # 11. Chemical Compounds:
Factor # 12. Chlorophyll Contents:
Factor # 13. Protoplasmic Factor:
Factor # 14. Accumulation of Carbohydrates:
Factor # 15. Blackman’s Principle of Limiting Factors:
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Factor # 4. Intensity: When CO 2 and temperature are not limiting and light intensities are low, the rate of photosynthesis increases with an increase in its intensity. At a point saturation may be reached, when further increase in light intensity fails to induce increase in photosynthesis. Optimum or saturation intensities may vary with different plant species e.g., C 4 and C 3. C 3 plants become saturated at levels considerably lower than full sunlight but C 4 plants are usually not saturated at full sunlight. When the intensity of light falling on a photosynthesizing organ is increased beyond a certain point, the cells of that organ become vulnerable to chlorophyll catalyzed photo-oxidations. Consequently, these organs begin to consume O 2 instead of CO 2 and CO 2 is released. Photo-oxidation is maximal when O 2 is present or carotenoids are absent or CO 2 concentration is low. Factor # 5.

Why Is Glucose Important For Plants And Animals? | DiabetesTalk.Net Why Is Glucose Important For Plants And Animals?
Why Is Glucose Important For Plants And Animals?
Glucose
Carbohydrates - Why Do Animals Use Glycogen For Their Polysaccharide Storage Whereas Plants Use Starch? - Biology Stack Exchange
Why Is Glucose Important In Plants?
The Role Of Photosynthesis In The Life Of Animals
Storage And Use Of Glucose
Importance Of Photosynthesis And Why Is It Vital For Survival Of Life
How Are Respiration And Photosynthesis Related?
Why Is Glucose Important To Plants?
Glucose
Storage Forms Of Glucose In Organisms
What Is Glucose Used For In A Plant?
Where Is Glucose Found In Nature?
Photosynthesis
What Is Produced As A Result Of Photosynthesis?
What Is Diffusion And Why Is It Important In Both Animals And Plants?
 Some is used to produce: Plants also need nitrates to make proteins. These are absorbed from the soil as nitrate ions. Three factors can limit the speed of photosynthesis: light intensity, carbon dioxide concentration and temperature. Without enough light, a plant cannot photosynthesise very quickly, even if there is plenty of water and carbon dioxide. Increasing the light intensity will boost the speed of photosynthesis. Sometimes photosynthesis is limited by the concentration of carbon dioxide in the air. Even if there is plenty of light, a plant cannot photosynthesise if there is insufficient carbon dioxide. If it gets too cold, the rate of photosynthesis will decrease.

Why Is Glucose Important For Plants And Animals? | DiabetesTalk.Net

Why Is Glucose Important For Plants And Animals?
Why Is Glucose Important For Plants And Animals?
Glucose
Carbohydrates - Why Do Animals Use Glycogen For Their Polysaccharide Storage Whereas Plants Use Starch? - Biology Stack Exchange
Why Is Glucose Important In Plants?
The Role Of Photosynthesis In The Life Of Animals
Storage And Use Of Glucose
Importance Of Photosynthesis And Why Is It Vital For Survival Of Life
How Are Respiration And Photosynthesis Related?
Why Is Glucose Important To Plants?
Glucose
Storage Forms Of Glucose In Organisms
What Is Glucose Used For In A Plant?
Where Is Glucose Found In Nature?
Photosynthesis
What Is Produced As A Result Of Photosynthesis?
What Is Diffusion And Why Is It Important In Both Animals And Plants?

Some is used to produce: Plants also need nitrates to make proteins. These are absorbed from the soil as nitrate ions. Three factors can limit the speed of photosynthesis: light intensity, carbon dioxide concentration and temperature. Without enough light, a plant cannot photosynthesise very quickly, even if there is plenty of water and carbon dioxide. Increasing the light intensity will boost the speed of photosynthesis. Sometimes photosynthesis is limited by the concentration of carbon dioxide in the air. Even if there is plenty of light, a plant cannot photosynthesise if there is insufficient carbon dioxide. If it gets too cold, the rate of photosynthesis will decrease.

 So increasing CO2 concentration increase
the rate of photosynthesis
What environmental characteristics increase the rate of photosynthesis? Several factors affect the rate of photosynthesis. If you
increase carbon dioxide levels, increase the intensity of light,
and keep ph levels around normal then the rate should increase. Why does rate of photosynthesis decrease when carbon dioxide level is decreased? The rate decreases because Chloroplasts use Carbon-dioxide, so
it slows down to conserve it. How does carbon dioxide effect the rate of photosynthesis? Too much can decrease the rate of Photosynthesis... Apparently..
<><><> Plants NEED CO2 to conduct photosynthesis. Increasing CO2
increases the rate of photosynthesis- to a point. BiologyPhotosynthesisBotany or Plant BiologyGeneticsBiochemistry
Still have questions?

So increasing CO2 concentration increase
the rate of photosynthesis
What environmental characteristics increase the rate of photosynthesis? Several factors affect the rate of photosynthesis. If you
increase carbon dioxide levels, increase the intensity of light,
and keep ph levels around normal then the rate should increase. Why does rate of photosynthesis decrease when carbon dioxide level is decreased? The rate decreases because Chloroplasts use Carbon-dioxide, so
it slows down to conserve it. How does carbon dioxide effect the rate of photosynthesis? Too much can decrease the rate of Photosynthesis... Apparently..
<><><> Plants NEED CO2 to conduct photosynthesis. Increasing CO2
increases the rate of photosynthesis- to a point. BiologyPhotosynthesisBotany or Plant BiologyGeneticsBiochemistry
Still have questions?

Factors Affecting Photosynthesis - QforQuestions Factors Affecting Photosynthesis
Factors Affecting Photosynthesis
Factors Affecting Photosynthesis
External factors:
Light
Temperature
Carbon dioxide
Oxygen
Water
Internal factors
Chlorophyll
Age of leaf:
Protoplasmic factor
Photosynthetic products
Internal structure of leaf
Blackman’s law of limiting factor:
 Suppose a leaf is subjected to a light intensity, sufficient for the assimilation of 5 mg carbon dioxide per hour. Under these conditions, if a plant is supplied with only one 1 mg of carbon dioxide, the rate of photosynthesis would be limited by carbon dioxide (because concentration of carbon dioxide is less than what can be assimilated in the available intensity of light). Now if the carbon dioxide concentration is gradually increased, the rate of photosynthesis will also increase correspondingly until the assimilation rate of 5 mg carbon dioxide per hour has been reached. However, further increase in carbon dioxide concentration, i.e., more than 5 mg per hour will not increase the rate of photosynthesis. This is because the light now becomes the limiting factor. Under these circumstances, any further increase in the rate of photosynthesis can be brought about only if there is an increase in the light intensity. The above experiment shows that of all the factors, the photosynthetic rate depends upon the factor which is present in relatively minimum concentration. This factor is known as “limiting factor.” All other factors present in optimum or maximum concentration will not be able to increase the rate of photosynthesis until the amount of limiting factor is increased correspondingly. Fig:

Factors Affecting Photosynthesis - QforQuestions

Factors Affecting Photosynthesis
Factors Affecting Photosynthesis
Factors Affecting Photosynthesis
External factors:
Light
Temperature
Carbon dioxide
Oxygen
Water
Internal factors
Chlorophyll
Age of leaf:
Protoplasmic factor
Photosynthetic products
Internal structure of leaf
Blackman’s law of limiting factor:

Suppose a leaf is subjected to a light intensity, sufficient for the assimilation of 5 mg carbon dioxide per hour. Under these conditions, if a plant is supplied with only one 1 mg of carbon dioxide, the rate of photosynthesis would be limited by carbon dioxide (because concentration of carbon dioxide is less than what can be assimilated in the available intensity of light). Now if the carbon dioxide concentration is gradually increased, the rate of photosynthesis will also increase correspondingly until the assimilation rate of 5 mg carbon dioxide per hour has been reached. However, further increase in carbon dioxide concentration, i.e., more than 5 mg per hour will not increase the rate of photosynthesis. This is because the light now becomes the limiting factor. Under these circumstances, any further increase in the rate of photosynthesis can be brought about only if there is an increase in the light intensity. The above experiment shows that of all the factors, the photosynthetic rate depends upon the factor which is present in relatively minimum concentration. This factor is known as “limiting factor.” All other factors present in optimum or maximum concentration will not be able to increase the rate of photosynthesis until the amount of limiting factor is increased correspondingly. Fig:

Effect of Light Colour on the Rate of Photosynthesis Effect of Light Colour on the Rate of Photosynthesis
Effect of Light Colour on the Rate of Photosynthesis
The effect of Light Colour on the Rate of Photosynthesis
To what extent does the colour of light have on the rate of photosynthesis on Cabomba Aquatica plants?
Background knowledge:
Get Help With Your Essay
6CO2 + 6H2O ïƒ C6H12O6 + 6O2
Hypothesis:
Variables:
Preliminary results:
Apparatus:
Method:
Data collection and Processing (Quantitative and Qualitative data):
Measures and average number of bubbles produced
Qualitative Data:
Average rate of photosynthetic reaction
Standard deviation from the mean:
Interpretation of results:
Conclusion:
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 This investigation will be focusing on which wavelengths of visible light, colour of light, has the highest rate of photosynthesis. It is safe to assume that green would have to lowest rate of photosynthesis because it is reflected by the leaves of plants and red/violet would have the highest rate of photosynthesis. Hypothesis: I hypothesise that the rate of photosynthesis will be less for the green light whereas lights such as red and violet will have the fastest rate of photosynthesis. Variables: Variable Type
Variable
How it is controlled/Managed
Why it is controlled/Manage
Independent
Colour/Wavelength of light
I will change the colour of the light using 5 different colours including white light
To determine how the wavelength of light affects the rate of photosynthesis the most
Dependent
The rate the Cabomba flower synthesises
N/A
N/A
Control
Light intensity
The bulb will be kept at 5cm away from the test tube containing the Cabomba flower at all times
Keeping the light intensity the same means it will have no additional effect on the rate of photosynthesis. A change of light intensity would result in a change of photosynthesis rate. Control
Room temperature ºC
The room temperature will be kept the same for the duration of the investigation of the experiment by ensuring there are no windows open, air conditioners on or heaters being used
By doing so I will be able to keep the room temperature relatively the same throughout the experiment reducing the effect of temperature increase or decrease on the rate of photosynthesis. Control
Light bulb
The same 100W light bulb will be used throughout the investigation
Different light bulbs may have different light intensities therefore using the same light bulb eradicates the issue of dealing with different light intensities that could affect the rate of reaction
Control
Concentration of Sodium Hydrogen Carbonate (NaHCO 3 )
Ensuring the same concentration of NaHCO 3 is used in the experiment and the source remains the same
Concentrations of Sodium Hydrogen Carbonate could have an effect on the rate of photosynthesis as it provides necessary carbon dioxide for photosynthesis so keeping the concentration the same eradicate that issue
Control
Type of leaves and size
The same sample of plant will be used throughout the duration of the experiment
Different plants may photosynthesise at different rates and different sized samples may also affect the rate of photosynthesis. Different leaves on plants absorb a different number of visible light wavelengths resulting in a different rate of photosynthesis.

Effect of Light Colour on the Rate of Photosynthesis

Effect of Light Colour on the Rate of Photosynthesis
Effect of Light Colour on the Rate of Photosynthesis
The effect of Light Colour on the Rate of Photosynthesis
To what extent does the colour of light have on the rate of photosynthesis on Cabomba Aquatica plants?
Background knowledge:
Get Help With Your Essay
6CO2 + 6H2O ïƒ C6H12O6 + 6O2
Hypothesis:
Variables:
Preliminary results:
Apparatus:
Method:
Data collection and Processing (Quantitative and Qualitative data):
Measures and average number of bubbles produced
Qualitative Data:
Average rate of photosynthetic reaction
Standard deviation from the mean:
Interpretation of results:
Conclusion:
Find out how UKEssays.com can help you!
Evaluation:
Cite This Work
DMCA / Removal Request

Photosynthesis- definition, equation, steps, process, diagram Photosynthesis- definition, equation, steps, process, diagram
Photosynthesis- definition, equation, steps, process, diagram
Table of Contents
Photosynthesis Definition
Photosynthesis equations/reactions/formula
Oxygenic Photosynthesis
Carbon dioxide + Water + solar energy → Glucose + Oxygen
6CO 2 + 6H 2 O + solar energy → C 6 H 12 O 6 + 6O 2
Carbon dioxide + Water + solar energy → Glucose + Oxygen + Water
6CO 2 + 12H 2 O+ solar energy → C 6 H 12 O 6 + 6O 2 + 6H 2 O
Anoxygenic Photosynthesis
CO 2 + 2H 2 S + light energy → (CH 2 O) + H 2 O + 2S
Video Animation: Photosynthesis (Crash Course)
Photosynthetic pigments
Chlorophyll
Bacteriorhodopsin
Phycobilins
Carotenoids
Factors affecting photosynthesis
Light
Carbon dioxide
Temperature
Process/ Steps of Photosynthesis
1. Absorption of light
2. Electron Transfer
3. Generation of ATP
4. Carbon Fixation
Types/ Stages/ Parts of photosynthesis
1. Light-dependent reactions
Photosystem II
Photosystem I
Reaction
Video Animation: The Light Reactions of Photosynthesis (Ricochet Science)
2. Light independent reactions (Calvin cycle)
Step 1: Fixation of CO2 into 3-phosphoglycerate
Step 2: Conversion of 3-phosphoglycerate to glyceraldehydes 3-phosphate
Step 3: Regeneration of ribulose 1,5-biphosphate from triose phosphates
Reaction
Video Animation: The Calvin Cycle (Ricochet Science)
Products of Photosynthesis
Photosynthesis examples
Photosynthesis in green plants or oxygenic bacteria
Photosynthesis in sulfur bacteria
Importance of photosynthesis
Artificial photosynthesis
Video Animation: Learning from leaves: Going green with artificial photosynthesis
Photosynthesis vs Cellular respiration
Photosynthesis
Cellular respiration
Video Animation: Photosynthesis vs. Cellular Respiration Comparison (BOGObiology)
FAQs (Revision Questions)
References
Sources
 After a point, however, the rate of photosynthesis remains constant as the light intensity increases. At this point, photosynthesis is limited by some other factors. Besides, the wavelength of light also affects the rate of photosynthesis. Different photosynthetic systems absorb light energy more effectively at different wavelengths. Carbon dioxide
An increase in the concentration of carbon dioxide increases the rate at which carbon is incorporated into carbohydrates in the light-independent reactions of photosynthesis. Thus, increasing the concentration of carbon dioxide in the atmosphere rapidly increases the rate of photosynthesis up to a point after which it is limited by some other factors. Temperature
The light-independent reactions of photosynthesis are affected by changes in temperature as they are catalyzed by enzymes, whereas the light-dependent reactions are not. The rate of the reactions increases as the enzymes reach their optimum temperature, after which the rate begins to decrease as the enzymes tend to denature. Process/ Steps of Photosynthesis
The overall process of photosynthesis can be objectively divided into four steps/ process: 1.

Photosynthesis- definition, equation, steps, process, diagram

After a point, however, the rate of photosynthesis remains constant as the light intensity increases. At this point, photosynthesis is limited by some other factors. Besides, the wavelength of light also affects the rate of photosynthesis. Different photosynthetic systems absorb light energy more effectively at different wavelengths. Carbon dioxide
An increase in the concentration of carbon dioxide increases the rate at which carbon is incorporated into carbohydrates in the light-independent reactions of photosynthesis. Thus, increasing the concentration of carbon dioxide in the atmosphere rapidly increases the rate of photosynthesis up to a point after which it is limited by some other factors. Temperature
The light-independent reactions of photosynthesis are affected by changes in temperature as they are catalyzed by enzymes, whereas the light-dependent reactions are not. The rate of the reactions increases as the enzymes reach their optimum temperature, after which the rate begins to decrease as the enzymes tend to denature. Process/ Steps of Photosynthesis
The overall process of photosynthesis can be objectively divided into four steps/ process: 1.

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 Plants also need nitrates to make proteins. These are absorbed from the soil as nitrate ions. Three factors can limit the speed of photosynthesis: light intensity, carbon dioxide concentration and temperature. Without enough light, a plant cannot photosynthesise very quickly, even if there is plenty of water and carbon dioxide. Increasing the light intensity will boost the speed of photosynthesis. Sometimes photosynthesis is limited by the concentration of carbon dioxide in the air. Even if there is plenty of light, a plant cannot photosynthesise if there is insufficient carbon dioxide. If it gets too cold, the rate of photosynthesis will decrease. Plants cannot photosynthesise if it gets too hot.

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Plants also need nitrates to make proteins. These are absorbed from the soil as nitrate ions. Three factors can limit the speed of photosynthesis: light intensity, carbon dioxide concentration and temperature. Without enough light, a plant cannot photosynthesise very quickly, even if there is plenty of water and carbon dioxide. Increasing the light intensity will boost the speed of photosynthesis. Sometimes photosynthesis is limited by the concentration of carbon dioxide in the air. Even if there is plenty of light, a plant cannot photosynthesise if there is insufficient carbon dioxide. If it gets too cold, the rate of photosynthesis will decrease. Plants cannot photosynthesise if it gets too hot.

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 Plants also need nitrates to make proteins. These are absorbed from the soil as nitrate ions. Three factors can limit the speed of photosynthesis: light intensity, carbon dioxide concentration and temperature. Without enough light, a plant cannot photosynthesise very quickly, even if there is plenty of water and carbon dioxide. Increasing the light intensity will boost the speed of photosynthesis. Sometimes photosynthesis is limited by the concentration of carbon dioxide in the air. Even if there is plenty of light, a plant cannot photosynthesise if there is insufficient carbon dioxide. If it gets too cold, the rate of photosynthesis will decrease. Plants cannot photosynthesise if it gets too hot.

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 Plants also need nitrates to make proteins. These are absorbed from the soil as nitrate ions. Three factors can limit the speed of photosynthesis: light intensity, carbon dioxide concentration and temperature. Without enough light, a plant cannot photosynthesise very quickly, even if there is plenty of water and carbon dioxide. Increasing the light intensity will boost the speed of photosynthesis. Sometimes photosynthesis is limited by the concentration of carbon dioxide in the air. Even if there is plenty of light, a plant cannot photosynthesise if there is insufficient carbon dioxide. If it gets too cold, the rate of photosynthesis will decrease. Plants cannot photosynthesise if it gets too hot.

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Leaf Disc Experiment to Investigate Rate of Photosynthesis Leaf Disc Experiment to Investigate Rate of Photosynthesis
Leaf Disc Experiment to Investigate Rate of Photosynthesis
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 This happened because higher light intensity will provide higher photon energy to excite electrons of the chlorophyll. Therefore, when this happens, there will be higher amount of energy in the form of ATP to produce a higher amount of glucose and oxygen. Thus, we can conclude that the rate of photosynthesis is higher at the higher light intensity. These explained well on the behavior of graph 8.22 which we can say that the graph shows rate of photosynthesis is directly perpendicular to the light intensity. The graph 8.22 was plotted to show the relationship of light intensity on the rate of photosynthesis. This graph is used to support the graph 8.21 produced earlier so that the result obtained can be claim to have a high certainty and it is proven to be right. Plus, from the graph 8.22, we can see that the higher the light intensity, the higher the rate of photosynthesis which is compliment to the theory. This means that both graphs support the theory of light intensity as one the factors that affecting the rate of photosynthesis whereby any decrease in distance or increase in light intensity, will cause to an increase on the rate of photosynthesis. Conclusion
Hence, based on the discussion above, we can conclude that in any increase of the distance of the lamp bulb to the base of the beaker will cause in the decrease of light intensity. Then, with the increase of light intensity will cause in the decrease in the time taken for the leaf discs to float on the surface of the solution which represents the increase of the rate of photosynthesis.

Leaf Disc Experiment to Investigate Rate of Photosynthesis

Leaf Disc Experiment to Investigate Rate of Photosynthesis
Leaf Disc Experiment to Investigate Rate of Photosynthesis
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 There are three main factors that affect the rate of
photosynthesis. Those factors are temperature, the concentration of
carbon dioxide and light intensity. What are the 3 main factors that affect the rate of photosynthesis? The intensity of light, concentration of carbon dioxide and
temperature are the factors that can affect the rate of
photosynthesis. These factors may either reduce or boost the rate
of the process. How does carbon dioxide affect the rate of photosynthesis? if there is no CO2 the plant can not crate food and the process
could not continue.....! What three factors that affect the rate at which photosynthesis occurs? Temperature, light intensity, and carbon dioxide
concentration. What factors affect the rate of photosynthesis?

There are three main factors that affect the rate of
photosynthesis. Those factors are temperature, the concentration of
carbon dioxide and light intensity. What are the 3 main factors that affect the rate of photosynthesis? The intensity of light, concentration of carbon dioxide and
temperature are the factors that can affect the rate of
photosynthesis. These factors may either reduce or boost the rate
of the process. How does carbon dioxide affect the rate of photosynthesis? if there is no CO2 the plant can not crate food and the process
could not continue.....! What three factors that affect the rate at which photosynthesis occurs? Temperature, light intensity, and carbon dioxide
concentration. What factors affect the rate of photosynthesis?

UCSB Science Line
 As you rise from low light intensity to higher light intensity, the rate of photosynthesis will increase because there is more light available to drive the reactions of photosynthesis. However, once the light intensity gets high enough, the rate won’t increase anymore because there will other factors that are limiting the rate of photosynthesis. A limiting factor could be the amount of chlorophyll molecules that are absorbing the light. At a very high intensity of light, the rate of photosynthesis would drop quickly as the light starts to damage the plant. Answer 3: This is a very important aspect of photosynthesis. As you are probably aware, Photosynthesis is a chemical reaction that captures light energy and turns it into sugar. These sugars are then used by the plant as energy for any number of things. The process of photosynthesis requires three things: Light, Carbon dioxide and water.

UCSB Science Line

As you rise from low light intensity to higher light intensity, the rate of photosynthesis will increase because there is more light available to drive the reactions of photosynthesis. However, once the light intensity gets high enough, the rate won’t increase anymore because there will other factors that are limiting the rate of photosynthesis. A limiting factor could be the amount of chlorophyll molecules that are absorbing the light. At a very high intensity of light, the rate of photosynthesis would drop quickly as the light starts to damage the plant. Answer 3: This is a very important aspect of photosynthesis. As you are probably aware, Photosynthesis is a chemical reaction that captures light energy and turns it into sugar. These sugars are then used by the plant as energy for any number of things. The process of photosynthesis requires three things: Light, Carbon dioxide and water.

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 These are absorbed from the soil as nitrate ions. Three factors can limit the speed of photosynthesis: light intensity, carbon dioxide concentration and temperature. Without enough light, a plant cannot photosynthesise very quickly, even if there is plenty of water and carbon dioxide. Increasing the light intensity will boost the speed of photosynthesis. Sometimes photosynthesis is limited by the concentration of carbon dioxide in the air. Even if there is plenty of light, a plant cannot photosynthesise if there is insufficient carbon dioxide. If it gets too cold, the rate of photosynthesis will decrease. Plants cannot photosynthesise if it gets too hot. If you plot the rate of photosynthesis against the levels of these three limiting factors, you get graphs like the ones above.

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These are absorbed from the soil as nitrate ions. Three factors can limit the speed of photosynthesis: light intensity, carbon dioxide concentration and temperature. Without enough light, a plant cannot photosynthesise very quickly, even if there is plenty of water and carbon dioxide. Increasing the light intensity will boost the speed of photosynthesis. Sometimes photosynthesis is limited by the concentration of carbon dioxide in the air. Even if there is plenty of light, a plant cannot photosynthesise if there is insufficient carbon dioxide. If it gets too cold, the rate of photosynthesis will decrease. Plants cannot photosynthesise if it gets too hot. If you plot the rate of photosynthesis against the levels of these three limiting factors, you get graphs like the ones above.

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 light intensity, carbon dioxide concentration and temperature. Without enough light, a plant cannot photosynthesise very quickly, even if there is plenty of water and carbon dioxide. Increasing the light intensity will boost the speed of photosynthesis. Sometimes photosynthesis is limited by the concentration of carbon dioxide in the air. Even if there is plenty of light, a plant cannot photosynthesise if there is insufficient carbon dioxide. If it gets too cold, the rate of photosynthesis will decrease. Plants cannot photosynthesise if it gets too hot. If you plot the rate of photosynthesis against the levels of these three limiting factors, you get graphs like the ones above. In practice, any one of these factors could limit the rate of photosynthesis. Farmers can use their knowledge of factors limiting the rate of photosynthesis to increase crop yields.

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light intensity, carbon dioxide concentration and temperature. Without enough light, a plant cannot photosynthesise very quickly, even if there is plenty of water and carbon dioxide. Increasing the light intensity will boost the speed of photosynthesis. Sometimes photosynthesis is limited by the concentration of carbon dioxide in the air. Even if there is plenty of light, a plant cannot photosynthesise if there is insufficient carbon dioxide. If it gets too cold, the rate of photosynthesis will decrease. Plants cannot photosynthesise if it gets too hot. If you plot the rate of photosynthesis against the levels of these three limiting factors, you get graphs like the ones above. In practice, any one of these factors could limit the rate of photosynthesis. Farmers can use their knowledge of factors limiting the rate of photosynthesis to increase crop yields.

Limiting factors in photosynthesis - Biology Notes for IGCSE 2014
#44 Limiting factors in photosynthesis As light intensity increases, the rate of photosynthesis will increase, until the plant is photosynthesising as fast as it can. At this point, even if light becomes brighter, the plant cannot photosynthesise any faster. Over the first part of the curve ( between A and B ), light is a limiting factor. The plant is limited in how fast it can photosynthesise because it does not have enough light. Between B and C, light is not a limiting factor. Even if more light is shone on the plant, it still cannot photosynthesise any faster. Carbon dioxide
In photosynthesis CO2 is a key limiting factor. The usual atmospheric level of CO2 is 0.03%. In perfect conditions of water availability, light and temperature this low CO2 level holds back the photosynthetic potential. The more CO2 a plant is given, the faster it can photosynthesise up to a point, but then a maximum is reach.

Limiting factors in photosynthesis - Biology Notes for IGCSE 2014

As light intensity increases, the rate of photosynthesis will increase, until the plant is photosynthesising as fast as it can. At this point, even if light becomes brighter, the plant cannot photosynthesise any faster. Over the first part of the curve ( between A and B ), light is a limiting factor. The plant is limited in how fast it can photosynthesise because it does not have enough light. Between B and C, light is not a limiting factor. Even if more light is shone on the plant, it still cannot photosynthesise any faster. Carbon dioxide
In photosynthesis CO2 is a key limiting factor. The usual atmospheric level of CO2 is 0.03%. In perfect conditions of water availability, light and temperature this low CO2 level holds back the photosynthetic potential. The more CO2 a plant is given, the faster it can photosynthesise up to a point, but then a maximum is reach.