Question

the splitting of water to extract electrons, resulting in molecular oxygen as a byproduct, is associated with which photosystem(s)? both photosystems i and ii photosystem ii neither photosystem i nor ii photosystem i

Explanation:

In photosynthesis, the splitting of water (photolysis) to extract electrons and produce molecular oxygen as a by - product occurs in photosystem II. Photosystem I is mainly involved in the later steps of the electron - transport chain and does not perform water - splitting.

Answer:

B. photosystem II