What statement is not true about photosynthesis? Select one:
A. ATP and NADH are produced during the light-dependent reactions.
B. Carbon dioxide is an input in the light-dependent reactions.
C. Oxygen is a limiting factor in the rate of photosynthesis.
D. The sun's energy is harnessed and converted into chemical energy.
Answer (2)
I believe the answer is c. Oxygen is not a limiting factor during photosynthesis. Oxygen is how they exchange gases in the environment. Oxygen is the product of photosynthesis so I don't see how it is limiting the rate.
The false statement about photosynthesis is that carbon dioxide is an input in the light-dependent reactions; it is, in fact, used in the light-independent reactions. The light-dependent reactions produce ATP and NADPH using sunlight, while carbon dioxide enters during the Calvin cycle. Oxygen produced is a byproduct of these reactions, not a limiting factor for photosynthesis.
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