Question

what replaces the electrons excited by sunlight in photosystem i? multiple choice electrons from water electrons from carbon dioxide electrons from glucose electrons from oxygen electrons from photosystem ii

Explanation:

In the light - dependent reactions of photosynthesis, when electrons in photosystem I are excited by sunlight, they are replaced by electrons from photosystem II. Water is split in photosystem II to provide electrons, but the direct source of replacement electrons for photosystem I is from photosystem II.

Answer:

E. Electrons from photosystem II