MDCAT Biology MCQ #496

The photolysis of water provides electrons to replace those lost by a reaction center. To which specific photosystem is this water-splitting complex attached?

MDCAT Biology MCQ #496

  1. Question 1

    Q1. The photolysis of water provides electrons to replace those lost by a reaction center. To which specific photosystem is this water-splitting complex attached?

    • A) Photosystem I
    • B) Photosystem II
    • C) Cytochrome b6f
    • D) ATP synthase

    Answer: Photosystem II

    Explanation: Photolysis occurs at the oxygen-evolving complex of PS II; PS I is involved in the reduction of NADP+.