MDCAT Biology MCQ #381

In the light-dependent reactions, electrons are removed from water molecules to replace those lost by a specific reaction center. To which center are these electrons first transferred?

MDCAT Biology MCQ #381

  1. Question 1

    Q1. In the light-dependent reactions, electrons are removed from water molecules to replace those lost by a specific reaction center. To which center are these electrons first transferred?

    • A) P680
    • B) P700
    • C) Plastoquinone
    • D) Ferredoxin

    Answer: P680

    Explanation: P680 (PS II) is the first to receive electrons from the photolysis of water, while P700 belongs to Photosystem I.