In the light dependent reactions of photosynthesis, both cyclic and non-cyclic flow of electrons take place. The cyclic flow of electrons is called 'cyclic' because, after the production of:
Correct answer: A. ATP molecules, the electrons are cycled back into the photosystem I
- A. ATP molecules, the electrons are cycled back into the photosystem I
- B. ATP molecules, the electrons are cycled back into the photosystem II
- C. NADPH molecules, the electrons are cycled back into the photosystem I
- D. NADPH molecules, the electrons are cycled back into the photosystem II
Explanation
The correct understanding involves recognizing that in the cyclic flow of electrons during the light-dependent reactions of photosynthesis, electrons are cycled back to photosystem I, not photosystem II, after ATP production. This process does not produce NADPH, as it is focused solely on ATP generation.
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