Question

Which photosystem's main function is to generate high-energy electrons for the synthesis of ATP?

a) Photosystem I
b) Photosystem II
c) Both Photosystem I and II
d) Neither Photosystem I nor II

Answer 1

Photosystem II is responsible for generating high-energy electrons crucial for the synthesis of ATP through the process of non-cyclic photophosphorylation.

Therefore, the correct answer to the question is b) Photosystem II.

Step-by-step explanation:

The main function of Photosystem II (PSII) is to generate high-energy electrons for the synthesis of ATP. In the process of non-cyclic photophosphorylation, PSII splits water to replace its lost electrons, which are then passed through an electron transport system (ETS) that creates a proton motive force. This proton motive force is used to synthesize ATP through chemiosmosis.

Therefore, the correct answer to the question is b) Photosystem II.