Photosystem II

Question

Photosystem II

Quizplus · Accepted Answer

Photosystem II is the first light-absorbing complex in photosynthetic electron transport. It is responsible for absorbing photons of light and using that energy to transfer electrons to an electron transport chain. Answer: C Photosystem II produces ATP through noncyclic electron transport. As electrons are passed down the electron transport chain, they generate a proton gradient that is used by ATP synthase to produce ATP. Answer: E Photosystem II can undergo cyclic electron transport under certain conditions, such as when there is a high level of ATP but a low level of NADPH. This allows for the generation of additional ATP while maintaining a balance of electron carriers in the system. Answers A and B are incorrect. Photosystem II does not contain chlorophylls with the specified name (P₇₀₀), nor does it gain electrons from oxygen.