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

Cannabis And CO2: Why Plants Suffer If They Don’t Get At Least A Minimum Amount Of CO2 — Ed Rosenthal
 The rate of photosynthesis has the greatest increase as the CO2 level climbs from 0-200. In this garden, air is enriched as it passes through the tubes. Under low-light conditions (150 mols or 1150 fc) (12,330 lux), the rate of photosyntheses increases as CO2 rises to 400 ppm. Increasing the CO2 concentration beyond that without increasing light intensity does not result in a higher rate of photosynthesis. The plant cannot take advantage of higher CO2 levels until the light intensity increases. At a light intensity of 600 mol (4600 fc) (49,310 lux), the photosynthesis rate increases more as CO2 concentration is increased to 400 ppm. The rate of increase declines a bit after that, but the photosynthesis rate continues to increase as CO2 levels reach 600 ppm. Above 600 ppm of CO2, the photosynthesis rate continues to climb but at an even slower rate, until the rate increase levels off at about 1200 ppm. The reflectors, with no bottom glass, draw in air as it exits through a carbon filter. When the plants receive between 4500- 5500 fc (48,240 lux) of light, they can utilize between 1200-1300 ppm of CO2.

Cannabis And CO2: Why Plants Suffer If They Don’t Get At Least A Minimum Amount Of CO2 — Ed Rosenthal

The rate of photosynthesis has the greatest increase as the CO2 level climbs from 0-200. In this garden, air is enriched as it passes through the tubes. Under low-light conditions (150 mols or 1150 fc) (12,330 lux), the rate of photosyntheses increases as CO2 rises to 400 ppm. Increasing the CO2 concentration beyond that without increasing light intensity does not result in a higher rate of photosynthesis. The plant cannot take advantage of higher CO2 levels until the light intensity increases. At a light intensity of 600 mol (4600 fc) (49,310 lux), the photosynthesis rate increases more as CO2 concentration is increased to 400 ppm. The rate of increase declines a bit after that, but the photosynthesis rate continues to increase as CO2 levels reach 600 ppm. Above 600 ppm of CO2, the photosynthesis rate continues to climb but at an even slower rate, until the rate increase levels off at about 1200 ppm. The reflectors, with no bottom glass, draw in air as it exits through a carbon filter. When the plants receive between 4500- 5500 fc (48,240 lux) of light, they can utilize between 1200-1300 ppm of CO2.

What is Photosynthesis | Definition from Seneca Learning Photosynthesis
Photosynthesis
The Rate of Photosynthesis
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 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
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 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
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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.

Cannabis And CO2: Why Plants Suffer If They Don’t Get At Least A Minimum Amount Of CO2 — Ed Rosenthal
 Enclosed gardens with no ventilation are also rapidly depleted to the point where the photosynthesis rate slows to a virtual stop at 200 ppm. Only when more CO2 is added to the mix does photosynthesis resume. A closed closet or other small gardening space can be recharged with CO2 simply by opening the door or curtain to let in fresh air. This increases the CO2 content of the closet passively, as air naturally equalizes the concentrations of oxygen (O2) and CO2 inside and outside the growing space, exchanging the higher O2 levels with CO2. Adding a small fan expedites the air exchange. The rate of photosynthesis has the greatest increase as the CO2 level climbs from 0-200. In this garden, air is enriched as it passes through the tubes. Under low-light conditions (150 mols or 1150 fc) (12,330 lux), the rate of photosyntheses increases as CO2 rises to 400 ppm. Increasing the CO2 concentration beyond that without increasing light intensity does not result in a higher rate of photosynthesis. The plant cannot take advantage of higher CO2 levels until the light intensity increases.

Enclosed gardens with no ventilation are also rapidly depleted to the point where the photosynthesis rate slows to a virtual stop at 200 ppm. Only when more CO2 is added to the mix does photosynthesis resume. A closed closet or other small gardening space can be recharged with CO2 simply by opening the door or curtain to let in fresh air. This increases the CO2 content of the closet passively, as air naturally equalizes the concentrations of oxygen (O2) and CO2 inside and outside the growing space, exchanging the higher O2 levels with CO2. Adding a small fan expedites the air exchange. The rate of photosynthesis has the greatest increase as the CO2 level climbs from 0-200. In this garden, air is enriched as it passes through the tubes. Under low-light conditions (150 mols or 1150 fc) (12,330 lux), the rate of photosyntheses increases as CO2 rises to 400 ppm. Increasing the CO2 concentration beyond that without increasing light intensity does not result in a higher rate of photosynthesis. The plant cannot take advantage of higher CO2 levels until the light intensity increases.

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.

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.

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.

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.

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.

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.

Factors Affecting The Rate Of Photosynthesis
Factors Affecting The Rate Of Photosynthesis
A Level Biology Project
Aims
Introduction
Background Information
Apparatus Needed For The Experiments
Method
Light Intensity = 1 / Distance² (m)
Rate Of the Reaction = 1 / Time (s)
Predictions
Light
NaHCO3
Results
Rate Of the Reaction = 1 / Time (s) x 1000
Interpretation
Distilled Water
0.01M NaHCO3
0.02M NaHCO3
0.05M NaHCO3
0.07M NaHCO3
0.1M NaHCO3
Limitations
Extension Work
Disclaimer
If you like this post please consider linking to it using this code:
 Lines of best fit were drawn for each CO2 concentration to make up for  any inaccuracy in any individual result. The line of best fit gives a  good picture of how the overall rate of reaction is affected by the  light and CO2. Interpretation
I will analyse the results for how the amount of light and CO2 affects  the rate of photosynthesis. My prediction that the rate of photosynthesis would go up if the light  intensity and NaHCO3 levels were increased proved correct. As the elodea  absorbed the light and CO2 it produced oxygen gas which increased the  pressure in the syringe. This pushed the air bubble in the capillary  tube down. The chloroplasts produce ATP and reduce NADP to NADPH2 when  exposed to light. It is at this stage of the reaction that oxygen is  produced as a waste product. As predicted when the light intensity increases so does the rate of  photosynthesis. I predicted that a level would be reached where  increasing the light intensity would have no more effect on the rate of  reaction as there would be some other limiting factor which limits the  rate of the reaction.

Factors Affecting The Rate Of Photosynthesis

Factors Affecting The Rate Of Photosynthesis
A Level Biology Project
Aims
Introduction
Background Information
Apparatus Needed For The Experiments
Method
Light Intensity = 1 / Distance² (m)
Rate Of the Reaction = 1 / Time (s)
Predictions
Light
NaHCO3
Results
Rate Of the Reaction = 1 / Time (s) x 1000
Interpretation
Distilled Water
0.01M NaHCO3
0.02M NaHCO3
0.05M NaHCO3
0.07M NaHCO3
0.1M NaHCO3
Limitations
Extension Work
Disclaimer
If you like this post please consider linking to it using this code:

Lines of best fit were drawn for each CO2 concentration to make up for  any inaccuracy in any individual result. The line of best fit gives a  good picture of how the overall rate of reaction is affected by the  light and CO2. Interpretation
I will analyse the results for how the amount of light and CO2 affects  the rate of photosynthesis. My prediction that the rate of photosynthesis would go up if the light  intensity and NaHCO3 levels were increased proved correct. As the elodea  absorbed the light and CO2 it produced oxygen gas which increased the  pressure in the syringe. This pushed the air bubble in the capillary  tube down. The chloroplasts produce ATP and reduce NADP to NADPH2 when  exposed to light. It is at this stage of the reaction that oxygen is  produced as a waste product. As predicted when the light intensity increases so does the rate of  photosynthesis. I predicted that a level would be reached where  increasing the light intensity would have no more effect on the rate of  reaction as there would be some other limiting factor which limits the  rate of the reaction.

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.

 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?

 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. When the temp goes up the rate of
photosynthesis falls as the temp goes up. This is a roller coaster
ride. As light intensity increases what happens to the rate of photosynthesis? I believe that it increases. The rate of photosynthesis increases as the concentration of hydrogen gas 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. When the temp goes up the rate of
photosynthesis falls as the temp goes up. This is a roller coaster
ride. As light intensity increases what happens to the rate of photosynthesis? I believe that it increases. The rate of photosynthesis increases as the concentration of hydrogen gas increases?

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 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.

Interactions of Light, CO2 and Temperature on Photosynthesis - Greenhouse Product News
June 2015 Culture, Grower News, Lighting, Plant Health, Production
Interactions of Light, CO2 and Temperature on Photosynthesis By Erik Runkle
Erik Runkle
 photosynthesis is reduced and the light saturation point is decreased. ( The light saturation point is the intensity at which additional increases in light do not increase photosynthesis.) This means the value of supplemental lighting is marginalized at a low CO 2 concentration. Photosynthesis increases as CO 2 increases until some saturating concentration, which is typically around 1,000 ppm. Enriching the air with CO 2 enables plants to more effectively utilize light, resulting in an increase in the light saturation point. Just as with supplemental lighting, the law of diminishing returns applies to CO 2 supplementation. Increasing the CO 2 concentration from 300 to 500 ppm causes a much greater increase in photosynthesis than increasing the CO 2 from 800 to 1,000 ppm. In the United States, few growers of ornamentals use supplemental CO 2, but it is commonly used in greenhouse production of vegetables, especially for tomatoes. Effects of temperature. The rate of most biological processes increases with temperature and that's also the case with photosynthesis.

Interactions of Light, CO2 and Temperature on Photosynthesis - Greenhouse Product News

June 2015 Culture, Grower News, Lighting, Plant Health, Production
Interactions of Light, CO2 and Temperature on Photosynthesis By Erik Runkle
Erik Runkle

photosynthesis is reduced and the light saturation point is decreased. ( The light saturation point is the intensity at which additional increases in light do not increase photosynthesis.) This means the value of supplemental lighting is marginalized at a low CO 2 concentration. Photosynthesis increases as CO 2 increases until some saturating concentration, which is typically around 1,000 ppm. Enriching the air with CO 2 enables plants to more effectively utilize light, resulting in an increase in the light saturation point. Just as with supplemental lighting, the law of diminishing returns applies to CO 2 supplementation. Increasing the CO 2 concentration from 300 to 500 ppm causes a much greater increase in photosynthesis than increasing the CO 2 from 800 to 1,000 ppm. In the United States, few growers of ornamentals use supplemental CO 2, but it is commonly used in greenhouse production of vegetables, especially for tomatoes. Effects of temperature. The rate of most biological processes increases with temperature and that's also the case with photosynthesis.

 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.

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

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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 The gas should be checked to prove that it is indeed oxygen - relights a glowing splint. Repeat at different lower CO2 concentrations by using different dilutions of a saturated solution. Graph the results placing CO2 concentration on the x-axis. Explanation
The rate of photosynthesis increases linearly with increasing CO2 concentration (from point A to B ). The rate falls gradually, and at a certain CO2 concentration it stays constant (from point B to C). Here a rise in CO2 levels has no effect as the other factors such as light intensity become limiting. This post on blogspot.com
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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
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The gas should be checked to prove that it is indeed oxygen - relights a glowing splint. Repeat at different lower CO2 concentrations by using different dilutions of a saturated solution. Graph the results placing CO2 concentration on the x-axis. Explanation
The rate of photosynthesis increases linearly with increasing CO2 concentration (from point A to B ). The rate falls gradually, and at a certain CO2 concentration it stays constant (from point B to C). Here a rise in CO2 levels has no effect as the other factors such as light intensity become limiting. This post on blogspot.com
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The rate of photosynthesis will increase as the light intensity increases. - GCSE Science - Marked by Teachers.com The rate of photosynthesis will increase as the light intensity increases.
The rate of photosynthesis will increase as the light intensity increases.
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Introduction
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 Temperature Level of CO2 And of course the light intensity; If u look at the sketch of graph of altering these variables you will see that at first there is a steady increase in the rate of photosynthesis but then the rate decreases and stabilizes, the reason why it stables is because of the other limiting factors. ... read more. Conclusion
Here is a diagram of how I would setup the experiment: by doing the experiment this was I would be able to get more accurate results, and also prove if there was any doubt that the bubble are oxygen bubbles, using the collected, gas in the syringe, and putting a glowing splint into it, obviously if it the splint re lit its self I would know that the gas a oxygen. If I was to extent this investigation I would try to see how other variable can affect the rate of the bubbles being produces: For example, if I wanted the see how carbon dioxide concentration affected the rate of photosynthesis then I would use different concentration of carbonated water and look for any changes. Also another variable I could investigate would be the temperature of the water in which I place the pond weed and chance the temperatures to find an optimum temperature; I and I would predict for such a experiment that above a certain temperature photosynthesis would stop because the plant cells would die. Sources for information and Application used :

The rate of photosynthesis will increase as the light intensity increases. - GCSE Science - Marked by Teachers.com

The rate of photosynthesis will increase as the light intensity increases.
The rate of photosynthesis will increase as the light intensity increases.
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Free Essay: The effect of light intensity on the rate of photosynthesis The effect of light intensity on the rate of photosynthesis
The effect of light intensity on the rate of photosynthesis
Topics In This Paper
 Photosynthesis can be defined as the production of simple sugars from carbon dioxide and water causing the release of sugar and oxygen. The chemical equation for photosynthesis can be expressed as: ( light) 6CO2 + 6H2O ( C6H12O6 + 6O2 (in the presence of chlorophyll)
The fact that all plants need light in order to photosynthesise has been proven many times in experiments, and so it is possible to say that without light, the plant would die. The reason that light intensity does affect the rate of photosynthesis is because as light, and therefore energy, falls on the chloroplasts in a leaf, it is trapped by the chlorophyll, which then makes the energy available for chemical reactions in the plant. Thus, as the amount of sunlight, or in this case light from a bulb, falls on the plant, more energy is absorbed, so more energy is available for the chemical reactions, and so more photosynthesis takes place in a given time. There are many factors, which affect the rate of photosynthesis, including light intensity, temperature and carbon dioxide concentration." Taken from www. Essaybank.co.uk/free_coursework/1649.html
There fore I only plan to change the sunlight intensity because I feel that this would be the best variable for me to change to find out how light intensity affects the rate of photosynthesis. Method
I will set up my experiment using the following equipment: 1) test tube filled with water and 0.50 of sodium bicarbonate
2) a plant that lives in a water ecosystem
3) syringe connected to a clear tube and then to the test tube (with the plant inside)
4) Two rulers 1 meter ruler to measure distance of light from plant and the other 30 cm ruler to measure the amount of oxygen given off from photosynthesis.

Free Essay: The effect of light intensity on the rate of photosynthesis

The effect of light intensity on the rate of photosynthesis
The effect of light intensity on the rate of photosynthesis
Topics In This Paper

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 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
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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.

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!

 false. How does light intensity effect photosynthesis? If the light intensity is increased, the rate of photosynthesis
increases. If the light intensity is increased, the rate of
photosynthesis increases. ( Depending on the type of plant)
In which light rate of photosynthesis is maximum? Red light increases the rate of photosynthesis. Red light
produced less CO2 over time. Does the rate of photosynthesis increase as the intensity of light increases? no photosynthesis works inside the plant not the intensity of
the light
Would the rate of photosynthesis continue to increase as temperature increases? yes
What happens to the rate of photosynthesis as the light intensity gets greater?

false. How does light intensity effect photosynthesis? If the light intensity is increased, the rate of photosynthesis
increases. If the light intensity is increased, the rate of
photosynthesis increases. ( Depending on the type of plant)
In which light rate of photosynthesis is maximum? Red light increases the rate of photosynthesis. Red light
produced less CO2 over time. Does the rate of photosynthesis increase as the intensity of light increases? no photosynthesis works inside the plant not the intensity of
the light
Would the rate of photosynthesis continue to increase as temperature increases? yes
What happens to the rate of photosynthesis as the light intensity gets greater?

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

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.

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
 As the light intensity increases the rate of photosynthesis follows (point B on the graph). This means more carbon dioxide is being absorbed by the plant for photosynthesis. So this means more carbon dioxide uptake occurs. The graph shows this increase in carbon dioxide uptake. There will come a point when the rate of photosynthesis has increased to match the rate of respiration. This is called the compensation point (point C on the graph). This is shown on the graph as the point the line crosses zero on the x-axis. Beyond the compensation point, further increases in light intensity cause an increase in photosynthesis. This means the rate of photosynthesis increases beyond the rate of respiration (point D). Now more carbon dioxide is being taken in by the plant for photosynthesis than is produced by the plant during respiration.

As the light intensity increases the rate of photosynthesis follows (point B on the graph). This means more carbon dioxide is being absorbed by the plant for photosynthesis. So this means more carbon dioxide uptake occurs. The graph shows this increase in carbon dioxide uptake. There will come a point when the rate of photosynthesis has increased to match the rate of respiration. This is called the compensation point (point C on the graph). This is shown on the graph as the point the line crosses zero on the x-axis. Beyond the compensation point, further increases in light intensity cause an increase in photosynthesis. This means the rate of photosynthesis increases beyond the rate of respiration (point D). Now more carbon dioxide is being taken in by the plant for photosynthesis than is produced by the plant during respiration.

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.

[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.

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
 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.

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? 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. If it is too
hot the enzymes will be destroyed and the plant will not be able to
photosynthesise. The temperature and the amount of carbon dioxide are
called the limiting factors. I think a graph of the results would look like this: Apparatus list: * Piece of weed
* Paperclip
* Sodium hydro carbonate
* Water
* Test tube
* Beaker
* Lamp
* Stopwatch
* Scissors
* Spatula
* Meter Rule
* Glass Rod
* Measuring Cylinder
Diagram:

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?

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. If it is too
hot the enzymes will be destroyed and the plant will not be able to
photosynthesise. The temperature and the amount of carbon dioxide are
called the limiting factors. I think a graph of the results would look like this: Apparatus list: * Piece of weed
* Paperclip
* Sodium hydro carbonate
* Water
* Test tube
* Beaker
* Lamp
* Stopwatch
* Scissors
* Spatula
* Meter Rule
* Glass Rod
* Measuring Cylinder
Diagram:

 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.

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).

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).

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
Add to My Bitesize
Factors affecting photosynthesis
Light intensity
Carbon dioxide concentration
Temperature
Chlorophyll
The compensation point
 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. Again, at some point, a different factor may become limiting. Beyond this concentration, further increases in the concentration of carbon dioxide will not result in a faster rate of photosynthesis, and would appear on a graph as a horizontal line. 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 - What happens during photosynthesis? - OCR 21C - GCSE Combined Science Revision - OCR 21st Century - BBC Bitesize

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

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.

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.

UCSB Science Line
 How can you look at a landscape and tell whether a lot of photosynthesis usually happens there? Thanks for asking,

Answer 2: So by level of light you probably mean light intensity which is something that can be measured. Light intensity is usually defined as the energy hitting an area over some time period. So in the case of a plant, a higher light intensity means more packets of light called “photons” are hitting the leaves. 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:

UCSB Science Line

How can you look at a landscape and tell whether a lot of photosynthesis usually happens there? Thanks for asking,

Answer 2: So by level of light you probably mean light intensity which is something that can be measured. Light intensity is usually defined as the energy hitting an area over some time period. So in the case of a plant, a higher light intensity means more packets of light called “photons” are hitting the leaves. 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:

 Red light increases the rate of photosynthesis. Red light
produced less CO2 over time. Does the rate of photosynthesis increase as the intensity of light increases? no photosynthesis works inside the plant not the intensity of
the light
Would the rate of photosynthesis continue to increase as temperature increases? yes
What happens to the rate of photosynthesis as the light intensity gets greater? If light intensity gets greater than in this case rate of
photosynthesis also increases. Is temperature a limiting factor of photosynthesis? Yes. Increase in temperature increases the rate of
photosynthesis (upto the optimum temperature) and then it process
stops increases its rate, ultimately stopping. this happens as heat
destroys enzyme (protein) .

Red light increases the rate of photosynthesis. Red light
produced less CO2 over time. Does the rate of photosynthesis increase as the intensity of light increases? no photosynthesis works inside the plant not the intensity of
the light
Would the rate of photosynthesis continue to increase as temperature increases? yes
What happens to the rate of photosynthesis as the light intensity gets greater? If light intensity gets greater than in this case rate of
photosynthesis also increases. Is temperature a limiting factor of photosynthesis? Yes. Increase in temperature increases the rate of
photosynthesis (upto the optimum temperature) and then it process
stops increases its rate, ultimately stopping. this happens as heat
destroys enzyme (protein) .

bio quiz #6 Flashcards | Quizlet bio quiz #6
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Terms in this set (57)
 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. When you think you have the answer, list the conditions below. Temperature: 25℃
Light intensity: 90%
CO2 level: 1000ppm
Oxygen production:

bio quiz #6 Flashcards | Quizlet

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

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. When you think you have the answer, list the conditions below. Temperature: 25℃
Light intensity: 90%
CO2 level: 1000ppm
Oxygen production:

 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?

 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?

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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Conclusion
Limitations and Recommendations
Limitations
Recommendations
Cite This Work
DMCA / Removal Request
 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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Conclusion
Limitations and Recommendations
Limitations
Recommendations
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DMCA / Removal Request

 What causes changes in rate of photosynthesis? There are three rate-dependant factors: light, concentration of
carbon dioxide and temperature. with light, less sun= less photosynthesis, more sun= more
photosynthesis. This is because there is a 'light dependant
reaction' as part of photosynthesis, and therefore photosynthesis
can only happen when there is enough light. CO2 is needed for photosynthesis. The more co2, the faster the
rate of photosynthesis. Increasing the Temperature increases the rate. This is because
there are enzymes in the process of photosynthesis, and with
enzymes, the rate increases with temperature (up to a point, when
it is too hot for the enzymes to work). What is the relationship between an increase in light intensity and photosynthetic rate in tomato leaves?

What causes changes in rate of photosynthesis? There are three rate-dependant factors: light, concentration of
carbon dioxide and temperature. with light, less sun= less photosynthesis, more sun= more
photosynthesis. This is because there is a 'light dependant
reaction' as part of photosynthesis, and therefore photosynthesis
can only happen when there is enough light. CO2 is needed for photosynthesis. The more co2, the faster the
rate of photosynthesis. Increasing the Temperature increases the rate. This is because
there are enzymes in the process of photosynthesis, and with
enzymes, the rate increases with temperature (up to a point, when
it is too hot for the enzymes to work). What is the relationship between an increase in light intensity and photosynthetic rate in tomato leaves?

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

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

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? 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.

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
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The Process of Photosynthesis
Light And Photosynthesis: An Introduction To Photosynthesis
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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
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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.

Factors affecting photosynthesis - What happens during photosynthesis? - OCR 21C - GCSE Combined Science Revision - OCR 21st Century - BBC Bitesize Factors affecting photosynthesis
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Factors affecting photosynthesis
Light intensity
Carbon dioxide concentration
Temperature
Chlorophyll
The compensation point
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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.

 Find more answers
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?

Find more answers
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?

Free Essay: The effect of light intensity on the rate of photosynthesis The effect of light intensity on the rate of photosynthesis
The effect of light intensity on the rate of photosynthesis
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 Free Essay: The effect of light intensity on the rate of photosynthesis
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The effect of light intensity on the rate of photosynthesis
By Explosion Mar 24, 2004 1629 Words
Cite
How light intensity effects the
Rate of photo synthesis. Aim
The aim of my experiment is to find out how light intensity affects the rate of photosynthesis. Prediction
I predict that as the light intensity increases that the rate of photosynthesis will increase in proportion, so for example if you increase the light intensity from 10cm away to 20 cm away form a stationary plant. There for the rate of photosynthesis will decrease proportionally with the distance of the light from the plant (in this case a half). This means that as the light moves away then there is less light given to the reaction for photosynthesis to happen. My theory behind this is the following; Photosynthesis is the process that plants use to create energy for themselves. It is best described from the following equation
Water + carbon dioxide sunlight glucose + oxygen
Or
sunlight
6H O +6CO C H O +6O (The balanced equation)
glucose is the resulting energy that is needed by the plant to grow and survive. Oxygen is the waste product that is given out via the stomata pores when they become turgid, this is during the process of respiration.

Free Essay: The effect of light intensity on the rate of photosynthesis
top-rated free essay
The effect of light intensity on the rate of photosynthesis
By Explosion Mar 24, 2004 1629 Words
Cite
How light intensity effects the
Rate of photo synthesis. Aim
The aim of my experiment is to find out how light intensity affects the rate of photosynthesis. Prediction
I predict that as the light intensity increases that the rate of photosynthesis will increase in proportion, so for example if you increase the light intensity from 10cm away to 20 cm away form a stationary plant. There for the rate of photosynthesis will decrease proportionally with the distance of the light from the plant (in this case a half). This means that as the light moves away then there is less light given to the reaction for photosynthesis to happen. My theory behind this is the following; Photosynthesis is the process that plants use to create energy for themselves. It is best described from the following equation
Water + carbon dioxide sunlight glucose + oxygen
Or
sunlight
6H O +6CO C H O +6O (The balanced equation)
glucose is the resulting energy that is needed by the plant to grow and survive. Oxygen is the waste product that is given out via the stomata pores when they become turgid, this is during the process of respiration.

 wgs? What monitor the rate of photosynthesis in a plant? carbon dioxide production
Which factors affect the rate of photosynthesis and how? amount of sunlight
amount of carbon dioxide
amount of water
intensity of sunlight
temperature
and how idk
How carbon dioxide affects the rate of photosynthesis? It is a raw material. 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.

wgs? What monitor the rate of photosynthesis in a plant? carbon dioxide production
Which factors affect the rate of photosynthesis and how? amount of sunlight
amount of carbon dioxide
amount of water
intensity of sunlight
temperature
and how idk
How carbon dioxide affects the rate of photosynthesis? It is a raw material. 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.

Light, CO2, Temperature, Relative Humidity and Photosynthesis | Manic Botanix
The Relationship between Light, CO2, Temperature and Relative Humidity in Photosynthesis
Light and rate of photosynthesis
Energy = Energy
Carbon dioxide and rate of photosynthesis
Air Temperature and rate of photosynthesis
Heat and Photorespiration
Heat Stress in Plants
Daytime versus Night Temperatures – Thermoperiod DIF
Relative Humidity and Photosynthesis
Low Humidity Also Reduces Photosynthesis
References
 Therefore: Light color + light intensity + surface area of plant exposed to light = chemical energy potential. We’ll be covering a great deal more information on light later in the book so let’s leave that one there for now. Carbon dioxide and rate of photosynthesis
Light provides the energy for photosynthetic pigments to convert carbon dioxide (CO 2) and water into sugars and oxygen. As light intensity increases, up to a point where the machinery of photosynthesis – the chloroplast – can no longer convert the light into chemical energy, the amount of sugar increases and thus, more energy is available for plant growth and maintenance. However, the concentration of CO 2 also influences photosynthesis in a dramatic way. To simplify things somewhat, plants consume CO 2 and release oxygen during the day as part of the process of photosynthesis (carbon dioxide + water → sugar + oxygen). At night they consume oxygen but don’t release oxygen. Instead they release CO 2 as part of the process of respiration (sugar + oxygen → carbon dioxide + water). Therefore, plants require CO 2 during the day for photosynthesis and oxygen at night for respiration.

Light, CO2, Temperature, Relative Humidity and Photosynthesis | Manic Botanix

The Relationship between Light, CO2, Temperature and Relative Humidity in Photosynthesis
Light and rate of photosynthesis
Energy = Energy
Carbon dioxide and rate of photosynthesis
Air Temperature and rate of photosynthesis
Heat and Photorespiration
Heat Stress in Plants
Daytime versus Night Temperatures – Thermoperiod DIF
Relative Humidity and Photosynthesis
Low Humidity Also Reduces Photosynthesis
References

Therefore: Light color + light intensity + surface area of plant exposed to light = chemical energy potential. We’ll be covering a great deal more information on light later in the book so let’s leave that one there for now. Carbon dioxide and rate of photosynthesis
Light provides the energy for photosynthetic pigments to convert carbon dioxide (CO 2) and water into sugars and oxygen. As light intensity increases, up to a point where the machinery of photosynthesis – the chloroplast – can no longer convert the light into chemical energy, the amount of sugar increases and thus, more energy is available for plant growth and maintenance. However, the concentration of CO 2 also influences photosynthesis in a dramatic way. To simplify things somewhat, plants consume CO 2 and release oxygen during the day as part of the process of photosynthesis (carbon dioxide + water → sugar + oxygen). At night they consume oxygen but don’t release oxygen. Instead they release CO 2 as part of the process of respiration (sugar + oxygen → carbon dioxide + water). Therefore, plants require CO 2 during the day for photosynthesis and oxygen at night for respiration.

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
 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. There is always a way out" -Confucius
Reona and Michael have been growing aquatic plants for a while, specifically Elodeas which is a type of pond weed. Michael states that a higher light intensity would increase the rate of photosynthesis, however, Reona disagrees. They both decide to test this theory out by conducting an experiment. Things to remember! When there is no light, photosynthesis can't occur since light is the activation energy needed for plants to convert carbon dioxide and water to glucose and oxygen
When there is no light, the plants would use up oxygen therefore emitting carbon dioxide bubbles instead.

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

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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Conclusion
Limitations and Recommendations
Limitations
Recommendations
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 This green light in the white light is the light that is not absorbed by the chlorophyll which makes the rate of photosynthesis of the leaf discs is lower than other leaf discs under other colors of light. After all the results were obtained, graphs were plotted by using all the data. From graph 8.21, we can see that as the distance of the bulb of lamp to the base of the beaker increases, the rate of photosynthesis decreases. This is due to the higher light intensity when the distance of the lamp bulb to the bottom of the beaker is shorter. We can see it clearly at the table 8.24. 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 green light in the white light is the light that is not absorbed by the chlorophyll which makes the rate of photosynthesis of the leaf discs is lower than other leaf discs under other colors of light. After all the results were obtained, graphs were plotted by using all the data. From graph 8.21, we can see that as the distance of the bulb of lamp to the base of the beaker increases, the rate of photosynthesis decreases. This is due to the higher light intensity when the distance of the lamp bulb to the bottom of the beaker is shorter. We can see it clearly at the table 8.24. 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.

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
 There is always a way out" -Confucius
Reona and Michael have been growing aquatic plants for a while, specifically Elodeas which is a type of pond weed. Michael states that a higher light intensity would increase the rate of photosynthesis, however, Reona disagrees. They both decide to test this theory out by conducting an experiment. Things to remember! When there is no light, photosynthesis can't occur since light is the activation energy needed for plants to convert carbon dioxide and water to glucose and oxygen
When there is no light, the plants would use up oxygen therefore emitting carbon dioxide bubbles instead. The plants should be given a couple minutes to start initiating the process of photosynthesis before you start timing. Graph
How does light intensity affect the Rate of Photosynthesis? Limiting Factors
Source: Factors limiting Photosynthesis. ( n.d.).

There is always a way out" -Confucius
Reona and Michael have been growing aquatic plants for a while, specifically Elodeas which is a type of pond weed. Michael states that a higher light intensity would increase the rate of photosynthesis, however, Reona disagrees. They both decide to test this theory out by conducting an experiment. Things to remember! When there is no light, photosynthesis can't occur since light is the activation energy needed for plants to convert carbon dioxide and water to glucose and oxygen
When there is no light, the plants would use up oxygen therefore emitting carbon dioxide bubbles instead. The plants should be given a couple minutes to start initiating the process of photosynthesis before you start timing. Graph
How does light intensity affect the Rate of Photosynthesis? Limiting Factors
Source: Factors limiting Photosynthesis. ( n.d.).

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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
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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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Factors affecting photosynthesis - light intensity - Photosynthesis - Edexcel - GCSE Biology (Single Science) Revision - Edexcel - BBC Bitesize

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 CO2 is needed for photosynthesis. The more co2, the faster the
rate of photosynthesis. Increasing the Temperature increases the rate. This is because
there are enzymes in the process of photosynthesis, and with
enzymes, the rate increases with temperature (up to a point, when
it is too hot for the enzymes to work). What is the relationship between an increase in light intensity and photosynthetic rate in tomato leaves? As light intensity increases then the rate of photosynthesis
increases until a point is reached when the rate levels off. Beyond
this point is called the light saturation point of
photosynthesis. How global warming is related to photosynthesis? Enzyme reaction rate increse with temperature. So photosynthetic
rate increases
How does changing the light intensity effect photosynthesis and why?

CO2 is needed for photosynthesis. The more co2, the faster the
rate of photosynthesis. Increasing the Temperature increases the rate. This is because
there are enzymes in the process of photosynthesis, and with
enzymes, the rate increases with temperature (up to a point, when
it is too hot for the enzymes to work). What is the relationship between an increase in light intensity and photosynthetic rate in tomato leaves? As light intensity increases then the rate of photosynthesis
increases until a point is reached when the rate levels off. Beyond
this point is called the light saturation point of
photosynthesis. How global warming is related to photosynthesis? Enzyme reaction rate increse with temperature. So photosynthetic
rate increases
How does changing the light intensity effect photosynthesis and why?

The relationship between light intensity and the rate of photosynthesis in spinach leaves | StudyHippo.com The relationship between light intensity and the rate of photosynthesis in spinach leaves
The relationship between light intensity and the rate of photosynthesis in spinach leaves
Get Full Essay
 We expected rate of photosynthesis to increase with increasing light intensity. This was because increasing light intensity would increase the amount of energy available for the light dependent photosynthetic reactions. However, the increasing rate of photosynthesis was predicted to eventually level off with increasing light intensity because when light intensity was no longer a limiting factor of photosynthetic rate, other factors such as amount of water and CO2 became limiting. Therefore, a maximum rate of photosynthesis was reached at a level of “light intensity saturation.” ( textbook)Materials and Methods: This investigation involved determining the effect of light intensity on the rate of photosynthesis as measured by rate of oxygen production of spinach leaves. This measurement was taken by the determining the rate at which spinach segments floated in liquid as oxygen produced during photosynthesis diffused into liquid-filled intercellular spaces. However, intercellular spaces of spinach leaves are largely gas-filled by nature. Thus, the spinach segments were first made to sink by subjecting a mixture of the leaves and 0.2% NaHCO3 to a vacuum aspirator, which infiltrated the cells with NaHCO3, a source of carbon dioxide for photosynthesis. Page:

The relationship between light intensity and the rate of photosynthesis in spinach leaves | StudyHippo.com

The relationship between light intensity and the rate of photosynthesis in spinach leaves
The relationship between light intensity and the rate of photosynthesis in spinach leaves
Get Full Essay

We expected rate of photosynthesis to increase with increasing light intensity. This was because increasing light intensity would increase the amount of energy available for the light dependent photosynthetic reactions. However, the increasing rate of photosynthesis was predicted to eventually level off with increasing light intensity because when light intensity was no longer a limiting factor of photosynthetic rate, other factors such as amount of water and CO2 became limiting. Therefore, a maximum rate of photosynthesis was reached at a level of “light intensity saturation.” ( textbook)Materials and Methods: This investigation involved determining the effect of light intensity on the rate of photosynthesis as measured by rate of oxygen production of spinach leaves. This measurement was taken by the determining the rate at which spinach segments floated in liquid as oxygen produced during photosynthesis diffused into liquid-filled intercellular spaces. However, intercellular spaces of spinach leaves are largely gas-filled by nature. Thus, the spinach segments were first made to sink by subjecting a mixture of the leaves and 0.2% NaHCO3 to a vacuum aspirator, which infiltrated the cells with NaHCO3, a source of carbon dioxide for photosynthesis. Page:

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? If it is too
hot the enzymes will be destroyed and the plant will not be able to
photosynthesise. The temperature and the amount of carbon dioxide are
called the limiting factors. I think a graph of the results would look like this: Apparatus list: * Piece of weed
* Paperclip
* Sodium hydro carbonate
* Water
* Test tube
* Beaker
* Lamp
* Stopwatch
* Scissors
* Spatula
* Meter Rule
* Glass Rod
* Measuring Cylinder
Diagram: Method: 1. Collect the equipment on the equipment list. 2. Darken the room, so that the plant cannot use light for
photosynthesising from other places.

If it is too
hot the enzymes will be destroyed and the plant will not be able to
photosynthesise. The temperature and the amount of carbon dioxide are
called the limiting factors. I think a graph of the results would look like this: Apparatus list: * Piece of weed
* Paperclip
* Sodium hydro carbonate
* Water
* Test tube
* Beaker
* Lamp
* Stopwatch
* Scissors
* Spatula
* Meter Rule
* Glass Rod
* Measuring Cylinder
Diagram: Method: 1. Collect the equipment on the equipment list. 2. Darken the room, so that the plant cannot use light for
photosynthesising from other places.

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 relationship between light intensity and the rate of photosynthesis in spinach leaves | StudyHippo.com The relationship between light intensity and the rate of photosynthesis in spinach leaves
The relationship between light intensity and the rate of photosynthesis in spinach leaves
Get Full Essay
 This way more data could be collected to decrease the error of the best fit curve drawn on the graph. These findings have various applications. Knowing light intensity needed to attain the maximum rate of photosynthesis combined with knowledge of optimal temperature, pH, carbon dioxide concentration, wavelength of light, and other factors affecting rate of photosynthesis would indicate the optimal growing conditions for specific plants. This brings us to a question for further experimentation. What are the optimal conditions of the other factors that affect rate of photosynthesis, namely, temperature, pH, carbon dioxide concentration, and light wavelength? Repeating this experiment while varying different factors would allow for the determination of optimal growing conditions of spinach leaves. Such information would especially pertinent to the agricultural industry. Page: 3 of 3
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This way more data could be collected to decrease the error of the best fit curve drawn on the graph. These findings have various applications. Knowing light intensity needed to attain the maximum rate of photosynthesis combined with knowledge of optimal temperature, pH, carbon dioxide concentration, wavelength of light, and other factors affecting rate of photosynthesis would indicate the optimal growing conditions for specific plants. This brings us to a question for further experimentation. What are the optimal conditions of the other factors that affect rate of photosynthesis, namely, temperature, pH, carbon dioxide concentration, and light wavelength? Repeating this experiment while varying different factors would allow for the determination of optimal growing conditions of spinach leaves. Such information would especially pertinent to the agricultural industry. Page: 3 of 3
Software Piracy and Cracking Thelma and Louise

The relationship between light intensity and the rate of photosynthesis in spinach leaves | StudyHippo.com The relationship between light intensity and the rate of photosynthesis in spinach leaves
The relationship between light intensity and the rate of photosynthesis in spinach leaves
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 Oxygen is a product of the light dependent reactions. In contrast, the light-independent reactions result in the production of sugar from carbon dioxide. It is useful to study factors that affect rate of photosynthesis in order to determine the conditions of optimal photosynthetic activity and explain various characteristics of plants. For example, understanding the affect of light intensity on rate of photosynthesis may reveal why shrubs in the shade do not grow as tall as trees with greater exposure to sunlight. In this experiment, spinach leaves were subjected to varying light intensities to determine the effect of light intensity on rate of photosynthesis as measured by production of oxygen. We expected rate of photosynthesis to increase with increasing light intensity. This was because increasing light intensity would increase the amount of energy available for the light dependent photosynthetic reactions. However, the increasing rate of photosynthesis was predicted to eventually level off with increasing light intensity because when light intensity was no longer a limiting factor of photosynthetic rate, other factors such as amount of water and CO2 became limiting. Therefore, a maximum rate of photosynthesis was reached at a level of “light intensity saturation.” ( textbook)Materials and Methods:

Oxygen is a product of the light dependent reactions. In contrast, the light-independent reactions result in the production of sugar from carbon dioxide. It is useful to study factors that affect rate of photosynthesis in order to determine the conditions of optimal photosynthetic activity and explain various characteristics of plants. For example, understanding the affect of light intensity on rate of photosynthesis may reveal why shrubs in the shade do not grow as tall as trees with greater exposure to sunlight. In this experiment, spinach leaves were subjected to varying light intensities to determine the effect of light intensity on rate of photosynthesis as measured by production of oxygen. We expected rate of photosynthesis to increase with increasing light intensity. This was because increasing light intensity would increase the amount of energy available for the light dependent photosynthetic reactions. However, the increasing rate of photosynthesis was predicted to eventually level off with increasing light intensity because when light intensity was no longer a limiting factor of photosynthetic rate, other factors such as amount of water and CO2 became limiting. Therefore, a maximum rate of photosynthesis was reached at a level of “light intensity saturation.” ( textbook)Materials and Methods:

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 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
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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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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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 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. The gas should be checked to prove that it is indeed oxygen - relights a glowing splint. Repeat at different light intensities by moving the lamp to different distances. Photo from passmyexams.co.uk
Graph the results placing light intensity on the x-axis. Explanation
Light energy absorbed by chlorophyll is converted to ATP and H+
At very low light levels the plant will be respiring only not photosynthesising. As the light intensity increases, the rate of photosynthesis increases.

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

#41 Effect of Light intensity on the rate of Photosynthesis
This post on blogspot.com
Also on Biology Notes for IGCSE
Air pollution
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Conservation, recycling sewage
11 Homeostasis
Genetic engineering
Voluntary, involuntary actions
Summary
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Loveleh jubleh

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. The gas should be checked to prove that it is indeed oxygen - relights a glowing splint. Repeat at different light intensities by moving the lamp to different distances. Photo from passmyexams.co.uk
Graph the results placing light intensity on the x-axis. Explanation
Light energy absorbed by chlorophyll is converted to ATP and H+
At very low light levels the plant will be respiring only not photosynthesising. As the light intensity increases, the rate of photosynthesis increases.

Effect of Light intensity on the rate of Photosynthesis - Biology Notes for IGCSE 2014
#41 Effect of Light intensity on the rate of Photosynthesis
This post on blogspot.com
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Tropism in plants
Fertilisation
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Loveleh jubleh
 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. The gas should be checked to prove that it is indeed oxygen - relights a glowing splint. Repeat at different light intensities by moving the lamp to different distances. Photo from passmyexams.co.uk
Graph the results placing light intensity on the x-axis. Explanation
Light energy absorbed by chlorophyll is converted to ATP and H+
At very low light levels the plant will be respiring only not photosynthesising. As the light intensity increases, the rate of photosynthesis increases.

#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

The relationship between light intensity and the rate of photosynthesis in spinach leaves | StudyHippo.com The relationship between light intensity and the rate of photosynthesis in spinach leaves
The relationship between light intensity and the rate of photosynthesis in spinach leaves
Get Full Essay
 Figure 1Rate of oxygen production as a function of light intensity. Concentration of NaHCO3 was held constant at 0. 2%, pH at 7. Treatments were performed at room temperature. Wavelength of light was white for all treatments. Rate of oxygen production was determined by finding the percentage of leaf disks found floating in aqueous 0.2% NaHCO3 after five minutes under lamplight. Rate of oxygen production increased from 0 to 5300 lux. However, the rate of increase appeared to level off at light intensities greater than 5300 lux. No change in rate of oxygen production was observed between 14400 to 20600 lux (Figure 1).DiscussionThe results of this experiment supported the hypothesis that rate of photosynthesis increased as light intensity increased. Increasing light intensity increased the amount of light energy available for light-dependent reactions to occur. (

Figure 1Rate of oxygen production as a function of light intensity. Concentration of NaHCO3 was held constant at 0. 2%, pH at 7. Treatments were performed at room temperature. Wavelength of light was white for all treatments. Rate of oxygen production was determined by finding the percentage of leaf disks found floating in aqueous 0.2% NaHCO3 after five minutes under lamplight. Rate of oxygen production increased from 0 to 5300 lux. However, the rate of increase appeared to level off at light intensities greater than 5300 lux. No change in rate of oxygen production was observed between 14400 to 20600 lux (Figure 1).DiscussionThe results of this experiment supported the hypothesis that rate of photosynthesis increased as light intensity increased. Increasing light intensity increased the amount of light energy available for light-dependent reactions to occur. (

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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.

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
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.

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

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

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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.

 intensity increases as distance decreases. you cant explain that. scources- bill o'reily
As light intensity increases the rate of photosynthesis? continues to increase
Does light intensity increase or decrease as the magnification increases? maybe
True or false As light intensity increases indefinitely the rate of photosynthesis increases indefinitely? false. How does changing the light intensity effect photosynthesis and why? By changing the light intensity the rate of photosynthesis will
either increase or decrease because it is one of the factors that
affects photosynthesis. If you increase the light intensity the rate increases but if
you decrease the light intensity the rate decreases. How does the resistance of a light bulb change?

intensity increases as distance decreases. you cant explain that. scources- bill o'reily
As light intensity increases the rate of photosynthesis? continues to increase
Does light intensity increase or decrease as the magnification increases? maybe
True or false As light intensity increases indefinitely the rate of photosynthesis increases indefinitely? false. How does changing the light intensity effect photosynthesis and why? By changing the light intensity the rate of photosynthesis will
either increase or decrease because it is one of the factors that
affects photosynthesis. If you increase the light intensity the rate increases but if
you decrease the light intensity the rate decreases. How does the resistance of a light bulb change?

The relationship between light intensity and the rate of photosynthesis in spinach leaves | StudyHippo.com The relationship between light intensity and the rate of photosynthesis in spinach leaves
The relationship between light intensity and the rate of photosynthesis in spinach leaves
Get Full Essay
 Although data was collected for 20 minutes, only data after fives minutes was graphed. Page: 2 of 3
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This was because after 10 minutes all the disks on four out of the five treatments were found floating. The rate of photosynthesis above 4250 lux was therefore too rapid to be measured at intervals of five minutes. Improvements would be to count the number of floating leaves every minute or use light intensities ranging from 0 to 4000 lux. This way more data could be collected to decrease the error of the best fit curve drawn on the graph. These findings have various applications. Knowing light intensity needed to attain the maximum rate of photosynthesis combined with knowledge of optimal temperature, pH, carbon dioxide concentration, wavelength of light, and other factors affecting rate of photosynthesis would indicate the optimal growing conditions for specific plants. This brings us to a question for further experimentation. What are the optimal conditions of the other factors that affect rate of photosynthesis, namely, temperature, pH, carbon dioxide concentration, and light wavelength?

Although data was collected for 20 minutes, only data after fives minutes was graphed. Page: 2 of 3
Sorry, but full essay samples are available
only for registered users
Become a member
This was because after 10 minutes all the disks on four out of the five treatments were found floating. The rate of photosynthesis above 4250 lux was therefore too rapid to be measured at intervals of five minutes. Improvements would be to count the number of floating leaves every minute or use light intensities ranging from 0 to 4000 lux. This way more data could be collected to decrease the error of the best fit curve drawn on the graph. These findings have various applications. Knowing light intensity needed to attain the maximum rate of photosynthesis combined with knowledge of optimal temperature, pH, carbon dioxide concentration, wavelength of light, and other factors affecting rate of photosynthesis would indicate the optimal growing conditions for specific plants. This brings us to a question for further experimentation. What are the optimal conditions of the other factors that affect rate of photosynthesis, namely, temperature, pH, carbon dioxide concentration, and light wavelength?

 As light intensity increases then the rate of photosynthesis
increases until a point is reached when the rate levels off. Beyond
this point is called the light saturation point of
photosynthesis. How global warming is related to photosynthesis? Enzyme reaction rate increse with temperature. So photosynthetic
rate increases
How does changing the light intensity effect photosynthesis and why? By changing the light intensity the rate of photosynthesis will
either increase or decrease because it is one of the factors that
affects photosynthesis. If you increase the light intensity the rate increases but if
you decrease the light intensity the rate decreases. What combination of environmental factors affects the rate of photosynthesis? Water, Light and Temperature are the main environmental factors
that will affect photosynthesis, along with availability of CO2. However, light is the main factor.

As light intensity increases then the rate of photosynthesis
increases until a point is reached when the rate levels off. Beyond
this point is called the light saturation point of
photosynthesis. How global warming is related to photosynthesis? Enzyme reaction rate increse with temperature. So photosynthetic
rate increases
How does changing the light intensity effect photosynthesis and why? By changing the light intensity the rate of photosynthesis will
either increase or decrease because it is one of the factors that
affects photosynthesis. If you increase the light intensity the rate increases but if
you decrease the light intensity the rate decreases. What combination of environmental factors affects the rate of photosynthesis? Water, Light and Temperature are the main environmental factors
that will affect photosynthesis, along with availability of CO2. However, light is the main factor.

The relationship between light intensity and the rate of photosynthesis in spinach leaves | StudyHippo.com The relationship between light intensity and the rate of photosynthesis in spinach leaves
The relationship between light intensity and the rate of photosynthesis in spinach leaves
Get Full Essay
 Rate of oxygen production was determined by finding the percentage of leaf disks found floating in aqueous 0.2% NaHCO3 after five minutes under lamplight. Rate of oxygen production increased from 0 to 5300 lux. However, the rate of increase appeared to level off at light intensities greater than 5300 lux. No change in rate of oxygen production was observed between 14400 to 20600 lux (Figure 1).DiscussionThe results of this experiment supported the hypothesis that rate of photosynthesis increased as light intensity increased. Increasing light intensity increased the amount of light energy available for light-dependent reactions to occur. ( textbook) Therefore, the greater the light intensity, the greater the rate of photosynthesis. Above a certain light intensity, though, the rate of photosynthesis remained constant. This occurred because there was a limit to the rate of photosynthesis possible. With limited water, enzymes, and other reagents of photosynthesis, increasing light intensity could eventually no longer increase rate of photosynthesis. The experiment was limited by the large range of light intensities used and the long time intervals at which measurements were taken.

Rate of oxygen production was determined by finding the percentage of leaf disks found floating in aqueous 0.2% NaHCO3 after five minutes under lamplight. Rate of oxygen production increased from 0 to 5300 lux. However, the rate of increase appeared to level off at light intensities greater than 5300 lux. No change in rate of oxygen production was observed between 14400 to 20600 lux (Figure 1).DiscussionThe results of this experiment supported the hypothesis that rate of photosynthesis increased as light intensity increased. Increasing light intensity increased the amount of light energy available for light-dependent reactions to occur. ( textbook) Therefore, the greater the light intensity, the greater the rate of photosynthesis. Above a certain light intensity, though, the rate of photosynthesis remained constant. This occurred because there was a limit to the rate of photosynthesis possible. With limited water, enzymes, and other reagents of photosynthesis, increasing light intensity could eventually no longer increase rate of photosynthesis. The experiment was limited by the large range of light intensities used and the long time intervals at which measurements were taken.

 Increases
What happens to the rate of photosynthesis if the light intensity increases? It increases. As light intensity increases what happens to the rate of photosynthesis? I believe that it increases. What happens to light as depth of the ocean increases? Its intensity decreases. What happens to the rate of photosynthesis as the light intensity gets greater? If light intensity gets greater than in this case rate of
photosynthesis also increases. What is the effect of light intensity on respiration? In general, net respiration (Rnet) in plants increases as light
intensity increases.

Increases
What happens to the rate of photosynthesis if the light intensity increases? It increases. As light intensity increases what happens to the rate of photosynthesis? I believe that it increases. What happens to light as depth of the ocean increases? Its intensity decreases. What happens to the rate of photosynthesis as the light intensity gets greater? If light intensity gets greater than in this case rate of
photosynthesis also increases. What is the effect of light intensity on respiration? In general, net respiration (Rnet) in plants increases as light
intensity increases.

 Increasing the intensity of light increases the
rate of photosynthesis
How does light intensity effect photosynthesis? If the light intensity is increased, the rate of photosynthesis
increases. If the light intensity is increased, the rate of
photosynthesis increases. ( Depending on the type of plant)
Increases or decreases the light intensity on a microscope? 2,7,9,5,10
Why intensity decreases as distance from the light source increases? intensity increases as distance decreases. you cant explain that. scources- bill o'reily
As light intensity increases the rate of photosynthesis? continues to increase
Does light intensity increase or decrease as the magnification increases? maybe
True or false As light intensity increases indefinitely the rate of photosynthesis increases indefinitely?

Increasing the intensity of light increases the
rate of photosynthesis
How does light intensity effect photosynthesis? If the light intensity is increased, the rate of photosynthesis
increases. If the light intensity is increased, the rate of
photosynthesis increases. ( Depending on the type of plant)
Increases or decreases the light intensity on a microscope? 2,7,9,5,10
Why intensity decreases as distance from the light source increases? intensity increases as distance decreases. you cant explain that. scources- bill o'reily
As light intensity increases the rate of photosynthesis? continues to increase
Does light intensity increase or decrease as the magnification increases? maybe
True or false As light intensity increases indefinitely the rate of photosynthesis increases indefinitely?

 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? false. How does light intensity effect photosynthesis? If the light intensity is increased, the rate of photosynthesis
increases. If the light intensity is increased, the rate of
photosynthesis increases. ( Depending on the type of plant)
In which light rate of photosynthesis is maximum?

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? false. How does light intensity effect photosynthesis? If the light intensity is increased, the rate of photosynthesis
increases. If the light intensity is increased, the rate of
photosynthesis increases. ( Depending on the type of plant)
In which light rate of photosynthesis is maximum?

Factors Affecting The Rate Of Photosynthesis
Factors Affecting The Rate Of Photosynthesis
A Level Biology Project
Aims
Introduction
Background Information
Apparatus Needed For The Experiments
Method
Light Intensity = 1 / Distance² (m)
Rate Of the Reaction = 1 / Time (s)
Predictions
Light
NaHCO3
Results
Rate Of the Reaction = 1 / Time (s) x 1000
Interpretation
Distilled Water
0.01M NaHCO3
0.02M NaHCO3
0.05M NaHCO3
0.07M NaHCO3
0.1M NaHCO3
Limitations
Extension Work
Disclaimer
If you like this post please consider linking to it using this code:
 This pushed the air bubble in the capillary  tube down. The chloroplasts produce ATP and reduce NADP to NADPH2 when  exposed to light. It is at this stage of the reaction that oxygen is  produced as a waste product. As predicted when the light intensity increases so does the rate of  photosynthesis. I predicted that a level would be reached where  increasing the light intensity would have no more effect on the rate of  reaction as there would be some other limiting factor which limits the  rate of the reaction. The rate increases at a steady rate as the light  intensity increases until near the end of each line where the rate of  increase decreases. This is either because the photosynthesis reaction  has reached it's maximum rate of reaction or another factor is limiting  the rate. As 6 different CO2 concentrations were used I can see that the  fi

Factors Affecting The Rate Of Photosynthesis

Factors Affecting The Rate Of Photosynthesis
A Level Biology Project
Aims
Introduction
Background Information
Apparatus Needed For The Experiments
Method
Light Intensity = 1 / Distance² (m)
Rate Of the Reaction = 1 / Time (s)
Predictions
Light
NaHCO3
Results
Rate Of the Reaction = 1 / Time (s) x 1000
Interpretation
Distilled Water
0.01M NaHCO3
0.02M NaHCO3
0.05M NaHCO3
0.07M NaHCO3
0.1M NaHCO3
Limitations
Extension Work
Disclaimer
If you like this post please consider linking to it using this code:

This pushed the air bubble in the capillary  tube down. The chloroplasts produce ATP and reduce NADP to NADPH2 when  exposed to light. It is at this stage of the reaction that oxygen is  produced as a waste product. As predicted when the light intensity increases so does the rate of  photosynthesis. I predicted that a level would be reached where  increasing the light intensity would have no more effect on the rate of  reaction as there would be some other limiting factor which limits the  rate of the reaction. The rate increases at a steady rate as the light  intensity increases until near the end of each line where the rate of  increase decreases. This is either because the photosynthesis reaction  has reached it's maximum rate of reaction or another factor is limiting  the rate. As 6 different CO2 concentrations were used I can see that the  fi

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.

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.

 However, as photosynthesis is a series of reactions catalysed by enzymes, if temperature surpasses an optimum, the enzymes are denatured and the rate of photosynthesis decreases. Light intensity: An increase in light intensity causes there to be an increase in the rate of photosynthesis. Too much U.V. light damages the leaf, and the rate of photosynthesis decreases. Carbon dioxide: as carbon dioxide increases, the rate of photosynthesis decreases. Water: water is a requirement for photosynthesis. If there is no water present, cells will not photosynthesise. Respiration
There are two stages to respiration:

However, as photosynthesis is a series of reactions catalysed by enzymes, if temperature surpasses an optimum, the enzymes are denatured and the rate of photosynthesis decreases. Light intensity: An increase in light intensity causes there to be an increase in the rate of photosynthesis. Too much U.V. light damages the leaf, and the rate of photosynthesis decreases. Carbon dioxide: as carbon dioxide increases, the rate of photosynthesis decreases. Water: water is a requirement for photosynthesis. If there is no water present, cells will not photosynthesise. Respiration
There are two stages to respiration:

 When the temp goes up the rate of
photosynthesis falls as the temp goes up. This is a roller coaster
ride. As light intensity increases what happens to the rate of photosynthesis? I believe that it increases. The rate of photosynthesis increases as the concentration of hydrogen gas increases? 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?

When the temp goes up the rate of
photosynthesis falls as the temp goes up. This is a roller coaster
ride. As light intensity increases what happens to the rate of photosynthesis? I believe that it increases. The rate of photosynthesis increases as the concentration of hydrogen gas increases? 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?

The Relationship between Light and Photosynthesis | Bartleby The Relationship between Light and Photosynthesis
The Relationship between Light and Photosynthesis
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Photosintersis Experiment
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 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
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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
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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
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The Effect Of Co2 Availability On Photosynthetic Rate Of Aquatic Plant
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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:
 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.

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.

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:
 As light intensity increases, what happens to the rate of photosynthesis? | Socratic
As light intensity increases, what happens to the rate of photosynthesis? Biology Energy In Organisms Photosynthesis
1 Answer
mason m
Nov 23, 2016
As light intensity increases, so does the rate of photosynthesis, up until a point. Explanation: Photosynthesis, specifically the light reactions, require light to occur. 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.

As light intensity increases, what happens to the rate of photosynthesis? | Socratic
As light intensity increases, what happens to the rate of photosynthesis? Biology Energy In Organisms Photosynthesis
1 Answer
mason m
Nov 23, 2016
As light intensity increases, so does the rate of photosynthesis, up until a point. Explanation: Photosynthesis, specifically the light reactions, require light to occur. 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.

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 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:

 By changing the light intensity the rate of photosynthesis will
either increase or decrease because it is one of the factors that
affects photosynthesis. If you increase the light intensity the rate increases but if
you decrease the light intensity the rate decreases. Does wilting increase or decrease the rate of photosynthesis of the plant? Wilting decreases photosynthesis as the leaf cells are beginning
to break down due to dehydration. Does wilting increase or decrease the rate of photosynthesis? Decreases by far. The wilting means there hasn't been much water
added to the plant, so without the water the Photosynthesis doesn't
exactly keep itself up. So the rate of Photosynthesis is about the
same as the rate of being watered. 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.

By changing the light intensity the rate of photosynthesis will
either increase or decrease because it is one of the factors that
affects photosynthesis. If you increase the light intensity the rate increases but if
you decrease the light intensity the rate decreases. Does wilting increase or decrease the rate of photosynthesis of the plant? Wilting decreases photosynthesis as the leaf cells are beginning
to break down due to dehydration. Does wilting increase or decrease the rate of photosynthesis? Decreases by far. The wilting means there hasn't been much water
added to the plant, so without the water the Photosynthesis doesn't
exactly keep itself up. So the rate of Photosynthesis is about the
same as the rate of being watered. 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.

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 maintenance of such a dynamic equilibrium between the oceans and the atmosphere is the principal factor for the constant value of carbon dioxide concentration of the atmosphere. Absorption of Carbon Dioxide: ADVERTISEMENTS: Carbon dioxide in the air surrounding the leaves ultimately reaches the chloroplasts. Its inward diffusion path is through the stomata to the intercellular spaces, through walls of palisade and spongy parenchyma cells to the cytoplasm and thereafter into the chloroplasts. 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.

The maintenance of such a dynamic equilibrium between the oceans and the atmosphere is the principal factor for the constant value of carbon dioxide concentration of the atmosphere. Absorption of Carbon Dioxide: ADVERTISEMENTS: Carbon dioxide in the air surrounding the leaves ultimately reaches the chloroplasts. Its inward diffusion path is through the stomata to the intercellular spaces, through walls of palisade and spongy parenchyma cells to the cytoplasm and thereafter into the chloroplasts. 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.

 spent electrons and H= carried over to LI pahse by NADP(NADPH+)
the process of the light independent stage
H+ from water in LD phase combine with C + O from CO2 to produce glucose in the calvin cycle (ATP is used). glucose is converted by plant to sucrose or starch. inputs and outputs of LD stage
- input= H2O, NADP and ADP+Pi
- output= O2, NADPH and ATP
inputs and outputs of LI stage
inputs= CO2, NADPH and ATP
outputs= C6H12O6 and H2O
limiting factors
-availability of the reactants
-availability of enzymes that catalyse the reactions
-availability of light
-temperature
carbon dioxide uptake and output by a plant in varying light intensities
-at low light, plant carries out PS but at a rate lower than the rate of cellular respiration so net production of CO2. - at higher light, rate of PS is higher than rate of cellular respiration and plant takes in CO2
what features of a leaf structure equip the leaf to carry out photosynthesis? - Their flat shape provides larger surface area exposed to sunlight
- the presence of many stromata provides access into the leaf for carbon dioxide
explain the effect of
-CO2
-light intensity
-temperature
CO2- photosynthetic rate increases as the CO2 concentration increases, until it levels off
light intensity- photosynthetic rate rapidly increases as the light intensity increases and then levels off
temperature- increased temp increases the photosynthetic rate, but this effect is not marked at low CO2 levels
why does reaction rate level off? the chlorophyll becomes saturated
what is the light compensation point? the point at which carbon dioxide input and output is at an equal rate. this means enough carbon dioxide is being produced by cellular respiration to fuel photosynthesis
why does photosynthesis rate decline when the CO2 level is reduced? the photosynthetic rate is determined by the rate at which CO2 enters the leaf. when this declines because of low atmospheric levels so does photosynthetic rate
how can a glasshouse be used to create an environment in which photosynthetic rates are maximized?

The relationship between light intensity and the rate of photosynthesis in spinach leaves | StudyHippo.com The relationship between light intensity and the rate of photosynthesis in spinach leaves
The relationship between light intensity and the rate of photosynthesis in spinach leaves
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 textbook) Therefore, the greater the light intensity, the greater the rate of photosynthesis. Above a certain light intensity, though, the rate of photosynthesis remained constant. This occurred because there was a limit to the rate of photosynthesis possible. With limited water, enzymes, and other reagents of photosynthesis, increasing light intensity could eventually no longer increase rate of photosynthesis. The experiment was limited by the large range of light intensities used and the long time intervals at which measurements were taken. Although data was collected for 20 minutes, only data after fives minutes was graphed. Page: 2 of 3
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This was because after 10 minutes all the disks on four out of the five treatments were found floating. The rate of photosynthesis above 4250 lux was therefore too rapid to be measured at intervals of five minutes. Improvements would be to count the number of floating leaves every minute or use light intensities ranging from 0 to 4000 lux.

textbook) Therefore, the greater the light intensity, the greater the rate of photosynthesis. Above a certain light intensity, though, the rate of photosynthesis remained constant. This occurred because there was a limit to the rate of photosynthesis possible. With limited water, enzymes, and other reagents of photosynthesis, increasing light intensity could eventually no longer increase rate of photosynthesis. The experiment was limited by the large range of light intensities used and the long time intervals at which measurements were taken. Although data was collected for 20 minutes, only data after fives minutes was graphed. Page: 2 of 3
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This was because after 10 minutes all the disks on four out of the five treatments were found floating. The rate of photosynthesis above 4250 lux was therefore too rapid to be measured at intervals of five minutes. Improvements would be to count the number of floating leaves every minute or use light intensities ranging from 0 to 4000 lux.

THE CONCEPT OF LIMITING FACTORS | Biology Boom 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.

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.

Effect of Light intensity on the rate of Photosynthesis - Biology Notes for IGCSE 2014
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 The gas should be checked to prove that it is indeed oxygen - relights a glowing splint. Repeat at different light intensities by moving the lamp to different distances. Photo from passmyexams.co.uk
Graph the results placing light intensity on the x-axis. Explanation
Light energy absorbed by chlorophyll is converted to ATP and H+
At very low light levels the plant will be respiring only not photosynthesising. As the light intensity increases, the rate of photosynthesis increases. However, the rate will not increase beyond a certain level of light intensity. At high light intensities the rate becomes constant, even with further increases in light intensity, there are no increases in the rate. The plant is unable to harvest the light at these high intensities and the chlorophyll system can be damaged by very intense light levels. References: skoool.ie
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The gas should be checked to prove that it is indeed oxygen - relights a glowing splint. Repeat at different light intensities by moving the lamp to different distances. Photo from passmyexams.co.uk
Graph the results placing light intensity on the x-axis. Explanation
Light energy absorbed by chlorophyll is converted to ATP and H+
At very low light levels the plant will be respiring only not photosynthesising. As the light intensity increases, the rate of photosynthesis increases. However, the rate will not increase beyond a certain level of light intensity. At high light intensities the rate becomes constant, even with further increases in light intensity, there are no increases in the rate. The plant is unable to harvest the light at these high intensities and the chlorophyll system can be damaged by very intense light levels. References: skoool.ie
passmyexams.co.uk
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asked in Science & Mathematics Biology · 1 decade ago
As light intensity increases, the rate of photosynthesis:? A. continues to decrease
B. continues to increase
C. intially decreases and then levels off
D. intially increase and then levels off
4 Answers
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Anonymous
1 decade ago
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D is the correct answer, Light enables photosynthesis so a and c are wrong, and no reaction can increase exponentially as in B
Mary
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The greater the light intensity, the greater the number of photons striking chlorophyll molecules; rate of photosynthesis is increased. Arabelle
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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.

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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.

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Loveleh jubleh
 The gas should be checked to prove that it is indeed oxygen - relights a glowing splint. Repeat at different light intensities by moving the lamp to different distances. Photo from passmyexams.co.uk
Graph the results placing light intensity on the x-axis. Explanation
Light energy absorbed by chlorophyll is converted to ATP and H+
At very low light levels the plant will be respiring only not photosynthesising. As the light intensity increases, the rate of photosynthesis increases. However, the rate will not increase beyond a certain level of light intensity. At high light intensities the rate becomes constant, even with further increases in light intensity, there are no increases in the rate. The plant is unable to harvest the light at these high intensities and the chlorophyll system can be damaged by very intense light levels. References: skoool.ie
passmyexams.co.uk
This post on blogspot.com
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The relationship between light intensity and the rate of photosynthesis in spinach leaves | StudyHippo.com The relationship between light intensity and the rate of photosynthesis in spinach leaves
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 Rate of photosynthesis was determined at pH 7, 0.2% NaHCO3, room temperature, and under white light using light intensities of 2200, 4250, 5300, 14400, 20600 lux. The amount of oxygen production was determined after five minutes at each light intensity. Spinach leaf segments were infiltrated with 0.2% NaHCO3 and made to sink in solutions of 0.2% NaHCO3 so that rate of oxygen , production could be estimated from the rate at which the leaf segments floated. The rate of oxygen production increased relatively rapidly at lower light intensities but leveled off at intensities greater than 5300 lux, suggesting that light intensity is a limiting factor of photosynthesis below 5300 lux. At light intensities greater then 5300, however, light intensity is no longer limiting. Instead other factors such as amount of water, NaHCO3, chlorophyll, and other reagents of photosynthesis become limiting. Introduction: Photosynthesis is a process that underlies all life on Earth. It is essential in creating the sugars that sustain life. By converting light energy into chemical energy in the form of carbohydrates, it not only sustains the life of photosynthetic organisms themselves (called autotrophs), but also provides food for the heterotrophs that consume autotrophs.

Rate of photosynthesis was determined at pH 7, 0.2% NaHCO3, room temperature, and under white light using light intensities of 2200, 4250, 5300, 14400, 20600 lux. The amount of oxygen production was determined after five minutes at each light intensity. Spinach leaf segments were infiltrated with 0.2% NaHCO3 and made to sink in solutions of 0.2% NaHCO3 so that rate of oxygen , production could be estimated from the rate at which the leaf segments floated. The rate of oxygen production increased relatively rapidly at lower light intensities but leveled off at intensities greater than 5300 lux, suggesting that light intensity is a limiting factor of photosynthesis below 5300 lux. At light intensities greater then 5300, however, light intensity is no longer limiting. Instead other factors such as amount of water, NaHCO3, chlorophyll, and other reagents of photosynthesis become limiting. Introduction: Photosynthesis is a process that underlies all life on Earth. It is essential in creating the sugars that sustain life. By converting light energy into chemical energy in the form of carbohydrates, it not only sustains the life of photosynthetic organisms themselves (called autotrophs), but also provides food for the heterotrophs that consume autotrophs.

The Effect of Light Intensity on the Rate of Oxygen... | 123 Help Me The Effect of Light Intensity on the Rate of Oxygen Production in a Plant While Photosynthesis is Taking Place
The Effect of Light Intensity on the Rate of Oxygen Production in a Plant While Photosynthesis is Taking Place The Effect of Light Intensity on the Rate of Oxygen... | 123 Help Me
The Effect of Light Intensity on the Rate of Oxygen Production in a Plant While Photosynthesis is Taking Place
The Effect of Light Intensity on the Rate of Oxygen Production in a Plant While Photosynthesis is Taking Place
Hypothesis: I predict that as the intensity of light is increased, so
would the photosynthesis. Furthermore, I predict that if the light
intensity increases, the rate of photosynthesis will increase at a
proportional rate and more oxygen will be produced and therefore the
oxygen levels will increase. However, the lower the light intensity,
less oxygen will be produced which would affect this investigation. This is all due to photosynthesis. Photosynthesis occurs only in the
presence of light and takes place in the chloroplasts of green plant
cells. It can be defined as the production of simple sugars from
carbon dioxide and water causing the release of sugar and oxygen. The sunlight gives energy for photosynthesis and when the sun gives
more energy to the plant and hits the chlorophyll the chlorophyll
absorbs it and therefore, catches more carbon dioxide, water, glucose
and oxygen. Apparatus: - Test tube- this is used to collect the left over oxygen.

The Effect of Light Intensity on the Rate of Oxygen... | 123 Help Me

The Effect of Light Intensity on the Rate of Oxygen Production in a Plant While Photosynthesis is Taking Place
The Effect of Light Intensity on the Rate of Oxygen Production in a Plant While Photosynthesis is Taking Place

The Effect of Light Intensity on the Rate of Oxygen... | 123 Help Me
The Effect of Light Intensity on the Rate of Oxygen Production in a Plant While Photosynthesis is Taking Place
The Effect of Light Intensity on the Rate of Oxygen Production in a Plant While Photosynthesis is Taking Place
Hypothesis: I predict that as the intensity of light is increased, so
would the photosynthesis. Furthermore, I predict that if the light
intensity increases, the rate of photosynthesis will increase at a
proportional rate and more oxygen will be produced and therefore the
oxygen levels will increase. However, the lower the light intensity,
less oxygen will be produced which would affect this investigation. This is all due to photosynthesis. Photosynthesis occurs only in the
presence of light and takes place in the chloroplasts of green plant
cells. It can be defined as the production of simple sugars from
carbon dioxide and water causing the release of sugar and oxygen. The sunlight gives energy for photosynthesis and when the sun gives
more energy to the plant and hits the chlorophyll the chlorophyll
absorbs it and therefore, catches more carbon dioxide, water, glucose
and oxygen. Apparatus: - Test tube- this is used to collect the left over oxygen.

Photosynthesis - Carbon dioxide | Britannica Carbon dioxide
Carbon dioxide
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Internal factors
 Photosynthesis - Carbon dioxide | Britannica
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Carbon dioxide
Included among the rate-limiting steps of the dark stage of photosynthesis are the chemical reactions by which organic compounds are formed by using carbon dioxide as a carbon source. The rates of these reactions can be increased somewhat by increasing the carbon dioxide concentration. Since the middle of the 19th century, the level of carbon dioxide in the atmosphere has been rising because of the extensive combustion of fossil fuels, cement production, and land-use changes associated with deforestation. The atmospheric level of carbon dioxide climbed from about 0.028 percent in 1860 to 0.032 percent by 1958 (when improved measurements began) and to 0.041 percent by 2020. This increase in carbon dioxide directly increases plant photosynthesis up to a point, but the size of the increase depends on the species and physiological condition of the plant. Furthermore, most scientists maintain that increasing levels of atmospheric carbon dioxide affect climate, increasing global temperatures and changing rainfall patterns. Such changes will also affect photosynthesis rates. Britannica Quiz
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Photosynthesis - Carbon dioxide | Britannica

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 RE: As light intensity increases, the rate of photosynthesis:? A. continues to decrease
B. continues to increase
C. intially decreases and then levels off
D. intially increase and then levels off
...Show more
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RE: As light intensity increases, the rate of photosynthesis:? A. continues to decrease
B. continues to increase
C. intially decreases and then levels off
D. intially increase and then levels off
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Source (s): light intensity increases rate photosynthesis: https://biturl.im/pgK6E
treeman
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1 decade ago
D
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Influence of Light on Crop Growth | PRO-MIX Greenhouse Growing Influence of Light on Crop Growth
Training Center
Influence of Light on Crop Growth
Quantity of light
Light quality
Light Duration or Photoperiod
 This point starts when light energy is sufficient for photosynthetic activity to produce more oxygen than is required by the plant for respiration. Likewise, the release of carbon dioxide through respiration by the plant must be less than the total carbon dioxide used by the plant for photosynthesis. In other words, the net photosynthesis (Eq. 1) is zero: Net Photosynthesis = Photosynthesis – Respiration (1)
Light saturation point. More light generally equates to higher levels of photosynthesis. However as the light intensity increases, the photosynthetic rate eventually reaches a maximum point. This point where the light intensity does not increase the photosynthesis rate is called the light saturation point. When this point is reached, the photosynthesis rate curve becomes flat (Figure 1). Figure 1.

Influence of Light on Crop Growth | PRO-MIX Greenhouse Growing

Influence of Light on Crop Growth
Training Center
Influence of Light on Crop Growth
Quantity of light
Light quality
Light Duration or Photoperiod

This point starts when light energy is sufficient for photosynthetic activity to produce more oxygen than is required by the plant for respiration. Likewise, the release of carbon dioxide through respiration by the plant must be less than the total carbon dioxide used by the plant for photosynthesis. In other words, the net photosynthesis (Eq. 1) is zero: Net Photosynthesis = Photosynthesis – Respiration (1)
Light saturation point. More light generally equates to higher levels of photosynthesis. However as the light intensity increases, the photosynthetic rate eventually reaches a maximum point. This point where the light intensity does not increase the photosynthesis rate is called the light saturation point. When this point is reached, the photosynthesis rate curve becomes flat (Figure 1). Figure 1.

Photosynthetic efficiency - Wikipedia Photosynthetic efficiency
Photosynthetic efficiency
Contents
Typical efficiencies
Plants
Algae and other monocellular organisms
Efficiencies of various biofuel crops
C3 vs. C4 and CAM plants
Research
Photorespiration
Engineered tobacco
Chloroplast biogenesis
See also
References
 Most crop plants store ~0.25% to 0.5% of the sunlight in the product (corn kernels, potato starch, etc.). Photosynthesis increases linearly with light intensity at low intensity, but at higher intensity this is no longer the case (see Photosynthesis-irradiance curve ). Above about 10,000 lux or ~100 watts/square meter the rate no longer increases. Thus, most plants can only utilize ~10% of full mid-day sunlight intensity. This dramatically reduces average achieved photosynthetic efficiency in fields compared to peak laboratory results. However, real plants (as opposed to laboratory test samples) have many redundant, randomly oriented leaves. This helps to keep the average illumination of each leaf well below the mid-day peak enabling the plant to achieve a result closer to the expected laboratory test results using limited illumination. Only if the light intensity is above a plant specific value, called the compensation point the plant assimilates more carbon and releases more oxygen by photosynthesis than it consumes by cellular respiration for its own current energy demand. Photosynthesis measurement systems are not designed to directly measure the amount of light absorbed by the leaf. Nevertheless, the light response curves that the class produces do allow comparisons in photosynthetic efficiency between plants.

Photosynthetic efficiency - Wikipedia

Photosynthetic efficiency
Photosynthetic efficiency
Contents
Typical efficiencies
Plants
Algae and other monocellular organisms
Efficiencies of various biofuel crops
C3 vs. C4 and CAM plants
Research
Photorespiration
Engineered tobacco
Chloroplast biogenesis
See also
References

Tomatosphere - Tomatosphère | Light & Plants Light & Plants
Resource Library | Backgrounders | K to 3, Grades 4 to 6, Grades 7 to 9, Grades 10 to 12
Light & Plants
Above Image: A plant absorbs sunlight
Light Factors Affecting Photosynthesis
A Day in the Life of a Plant
Light Quality and Photosynthesis
Plant Photoperiodism
Glossary
Carbon dioxide
Carbohydrate
Chlorophyll
Light compensation point
Glucose
Metabolic process
Oxygen
Photoperiodism (plants)
Photosynthesis
Respiration
Transpiration rate
References
External Resources
 The plant uses energy from the glucose it produced for growth and other metabolic processes. The light compensation point of plants is the intensity of light at which the rate of carbon dioxide uptake through photosynthesis is exactly balanced by the rate of carbon dioxide production through respiration (see Figure 2). This can also be described as the light intensity at which the rate of oxygen production is exactly balanced by the rate of oxygen consumption. Figure 2: The green line shows when the rate of photosynthesis (rate of CO 2 update) is greater than the rate of respiration (rate of CO 2 production). The red lines show when respiration is greater than photosynthesis. The point when photosynthesis equals respiration is the light compensation point. Source: Let's Talk Science
For a green plant to survive, grow, and produce mature fruit, the rate of photosynthesis (production of glucose) must be greater than the rate of respiration (consumption of glucose). The total amount of glucose production due to photosynthesis can be increased in two ways:

Tomatosphere - Tomatosphère | Light & Plants

Light & Plants
Resource Library | Backgrounders | K to 3, Grades 4 to 6, Grades 7 to 9, Grades 10 to 12
Light & Plants
Above Image: A plant absorbs sunlight
Light Factors Affecting Photosynthesis
A Day in the Life of a Plant
Light Quality and Photosynthesis
Plant Photoperiodism
Glossary
Carbon dioxide
Carbohydrate
Chlorophyll
Light compensation point
Glucose
Metabolic process
Oxygen
Photoperiodism (plants)
Photosynthesis
Respiration
Transpiration rate
References
External Resources

The plant uses energy from the glucose it produced for growth and other metabolic processes. The light compensation point of plants is the intensity of light at which the rate of carbon dioxide uptake through photosynthesis is exactly balanced by the rate of carbon dioxide production through respiration (see Figure 2). This can also be described as the light intensity at which the rate of oxygen production is exactly balanced by the rate of oxygen consumption. Figure 2: The green line shows when the rate of photosynthesis (rate of CO 2 update) is greater than the rate of respiration (rate of CO 2 production). The red lines show when respiration is greater than photosynthesis. The point when photosynthesis equals respiration is the light compensation point. Source: Let's Talk Science
For a green plant to survive, grow, and produce mature fruit, the rate of photosynthesis (production of glucose) must be greater than the rate of respiration (consumption of glucose). The total amount of glucose production due to photosynthesis can be increased in two ways: