Which of the following is a normal process of photosynthesis that could not occur if all reaction centers were inactivated by a toxin?
A)donation of excited electrons by chlorophyll a to a primary electron acceptor
B)donation of excited electrons by chlorophyll b to a primary electron acceptor
C)absorption of photons by chlorophyll b
D)absorption of photons by carotenoids

Question

Quizplus · Accepted Answer

Donation of excited electrons by chlorophyll a to a primary electron acceptor is a critical step in photosynthesis that happens in the reaction center of photosystems I and II. Inactivation of all reaction centers would prevent the flow of electrons and the production of ATP and NADPH, thereby halting photosynthesis. The other choices may contribute to photosynthesis, but they are not essential steps that would be affected by the inactivation of all reaction centers.

Which of the Following Is a Normal Process of Photosynthesis