MDCAT Biology MCQ #156

A plant is exposed to extremely high-intensity light that could potentially damage its photosynthetic apparatus. Which pigments provide a protective function against photo-oxidation?

MDCAT Biology MCQ #156

  1. Question 1

    Q1. A plant is exposed to extremely high-intensity light that could potentially damage its photosynthetic apparatus. Which pigments provide a protective function against photo-oxidation?

    • A) Chlorophyll a
    • B) Chlorophyll b
    • C) Carotenoids
    • D) Phycobilins

    Answer: Carotenoids

    Explanation: Carotenoids protect chlorophyll from intense light; chlorophyll b is an accessory pigment but its primary role is broadening the absorption spectrum.