This activity contains 5 questions.
One of the important waste products of photosynthesis is oxygen gas. Where does this oxygen gas come from?
Oxygen is released when carbon dioxide is broken down to extract carbon for later use in building glucose.
Oxygen is released when water is broken down to extract electrons and protons for use in the light reactions.
Oxygen is produced from breakdown of an intermediate product in the Calvin cycle.
Oxygen is produced as a waste product in the form of cellular respiration that is used by photosynthetic producers.
The light reactions produce _____.
glucose and oxygen, completing the process of photosynthesis
oxygen, NADPH, and ATP
several photons of light energy, which then power the dark reactions
none of the above
The thylakoid membranes bring together the components necessary to carry out the _____.
production of glucose
Incoming photons of light energy initiate photosynthesis by _____.
exciting electrons in pigment molecules within the photosystems, raising them to a higher energy level
turning ATP synthase turbines in the thylakoid membrane
splitting water molecules into oxygen and high-energy electrons
catalyzing a reaction that joins H
O with CO
, yielding glucose
Which option properly summarizes the inputs and outputs of the Calvin cycle?
O + light energy ( ATP + NADPH + O
O + light energy + CO
( glucose + O
ATP + NADPH + 3CO
none of the above
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