MDCAT Biology MCQ #441

A plant physiologist inhibits Photosystem II while keeping Photosystem I functional. Which specific process will be immediately halted due to this selective inhibition?

MDCAT Biology MCQ #441

  1. Question 1

    Q1. A plant physiologist inhibits Photosystem II while keeping Photosystem I functional. Which specific process will be immediately halted due to this selective inhibition?

    • A) The ability to catalyze the photolysis of water molecules
    • B) The location within the thylakoid membrane system
    • C) The presence of a reaction center chlorophyll a molecule
    • D) The absorption of light energy via accessory pigments

    Answer: The ability to catalyze the photolysis of water molecules

    Explanation: PS II (P680) is associated with the oxygen-evolving complex for water splitting, whereas PS I (P700) receives electrons from the ETC.