As a result of the cascade of electrons down the electron transport chains of the light reactions,
A)NADPH is reduced to NADP⁺.
B)NADPH is oxidized to NADP⁺.
C)NADP⁺ is reduced to NADPH.
D)NADP⁺ is oxidized to NADPH.

Question

Quizplus · Accepted Answer

The electrons passing down the electron transport chain during the light reactions of photosynthesis contribute to the formation of a proton gradient across the thylakoid membrane. This gradient is used to power the production of ATP by ATP synthase. At the end of the transport chain, the electrons combine with NADP+ and H+ ions to form NADPH, which represents the reduced form of NADP+. Therefore, option C, "NADP+ is reduced to NADPH," is the correct answer.

As a Result of the Cascade of Electrons Down the Electron