Which of the following would be a reasonable explanation of why the chloroplast would use the cyclic electron pathway as well as the noncyclic electron pathway?
A) The noncyclic electron pathway does not provide enough NADPH for the cell.
B) The noncyclic electron pathway does not provide enough oxygen for the cell.
C) The Calvin cycle utilizes more NADPH than ATP and the cyclic electron pathway produces NADPH.
D) The Calvin cycle utilizes more ATP than NADPH and the cyclic electron pathway produces ATP.
E) The cyclic electron pathway only runs when oxygen is limiting.

Question

Quizplus · Accepted Answer

The cyclic electron pathway is used to produce additional ATP without producing NADPH, balancing the ATP/NADPH consumption ratio required by the Calvin cycle, which consumes more ATP than NADPH.

Which of the Following Would Be a Reasonable Explanation of Why