Question

The cyclic electron flow during photosynthesis generates

• A. NADPH alone.
• B. ATP and NADPH.
• C. ATP alone.
• D. ATP, NADPH and $O_2$.

Answer 1

The correct option is C ATP alone.

Cyclic electron flow is essential for photosynthesis. It is used to synthesize ATP. It only utilizes photosystem I. It does not generate NADPH or oxygen. However, noncyclic electron flow generates ATP and NADPH.

Thus, the correct answer is option C.