Electrons from water are transported through the photosystems and photosynthetic electron transport chain and are ultimately used to reduce NADP⁺ to NADPH. At what point do the electrons have the greatest amount of potential energy? A)When they are associated with water. B)When they are associated with photosystem II. C)When they are associated with photosystem I. D)When they are associated with NADPH.

Question

Quizplus · Accepted Answer

Electrons have the greatest amount of potential energy when they are associated with photosystem I, as they have been energized by light absorption and are at a high energy level before they are used to reduce NADP+ to NADPH.

Electrons from Water Are Transported Through the Photosystems and Photosynthetic