Which of the following will recycle electrons back to photosystem I? A) noncyclic electron pathway B) cyclic electron pathway C) CO₂ fixation stage of Calvin cycle reactions D) citric acid cycle E) CO₂ reduction phase of Calvin cycle reactions

Question

Quizplus · Accepted Answer

The cyclic electron pathway is the only option that recycles electrons back to photosystem I. In this pathway, photosystem I is used to generate ATP, but instead of passing electrons to NADP+ to be used in the reduction phase of the Calvin cycle, the electrons cycle back to photosystem I. This allows for additional ATP production without the need for additional electrons from water.

Which of the Following Will Recycle Electrons Back to Photosystem