Photosystems I and II both contribute electrons to cytochrome bf to generate a proton gradient that powers ATP generation by the chloroplast ATP synthase.

Question

Quizplus · Accepted Answer

Both photosystems I and II contribute electrons to the electron transport chain, which ultimately generates a proton gradient that drives ATP synthesis by ATP synthase. This process is known as photosynthetic phosphorylation, and it is a key mechanism by which plants and other photosynthetic organisms convert light energy into chemical energy.

Photosystems I and II Both Contribute Electrons to Cytochrome Bf