MDCAT Biology MCQ #456

A plant is exposed to bright light and high oxygen levels, triggering photorespiration. How does this process contrast with aerobic respiration?

MDCAT Biology MCQ #456

  1. Question 1

    Q1. A plant is exposed to bright light and high oxygen levels, triggering photorespiration. How does this process contrast with aerobic respiration?

    • A) It generates a large amount of ATP for the cell
    • B) It occurs in the mitochondria during the dark hours
    • C) It consumes oxygen and releases CO2 without ATP production
    • D) It is the primary method of carbon fixation in C4 plants

    Answer: It consumes oxygen and releases CO2 without ATP production

    Explanation: Photorespiration consumes oxygen and releases CO2 in the light without producing ATP, unlike normal aerobic respiration which produces ATP.