MDCAT Biology MCQ #3303

What is the effect of a competitive inhibitor on the Km and Vmax of an enzyme?

MDCAT Biology MCQ #3303

  1. Question 1

    Q1. What is the effect of a competitive inhibitor on the Km and Vmax of an enzyme?

    • A) Increases Km, decreases Vmax
    • B) Decreases Km, increases Vmax
    • C) Increases Km, no effect on Vmax
    • D) No effect on Km, decreases Vmax

    Answer: Increases Km, no effect on Vmax

    Explanation: Competitive inhibitors increase the Km by competing with the substrate, without affecting Vmax