MDCAT Biology MCQ #158

The enzyme ATP synthase is embedded in the mitochondrial cristae. Which specific part of this enzyme complex protrudes into the matrix and catalyzes ATP formation?

MDCAT Biology MCQ #158

  1. Question 1

    Q1. The enzyme ATP synthase is embedded in the mitochondrial cristae. Which specific part of this enzyme complex protrudes into the matrix and catalyzes ATP formation?

    • A) F1 particle
    • B) Fo factor
    • C) Stalk
    • D) Basal body

    Answer: F1 particle

    Explanation: The F1 particle (headpiece) contains the catalytic site for ATP synthesis; the Fo part acts as the proton channel through the membrane.