Multiple choice

Which of the following statements is not true about photosynthesis?

  1. In the non-cyclic photophosphorylation, water is split and oxygen is released.

  2. Photosystem II makes non-cyclic photophosphorylation more efficient than does cyclic photophosphorylation.

  3. The cyclic system is used when there is insufficient NADP+ to absorb electrons in plants cells.

  4. More carbohydrate is produced during cyclic photophosphorylation than during non-cyclic photophosphorylation.

  5. None of these
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Cyclic photophosphorylation produces ATP but does not produce carbohydrates, as it lacks the Calvin cycle integration and NADPH production associated with non-cyclic pathways.

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