MDCAT Biology MCQ #3311

An enzyme has a high Km value for its substrate. What does this indicate about the enzyme-substrate interaction?

MDCAT Biology MCQ #3311

  1. Question 1

    Q1. An enzyme has a high Km value for its substrate. What does this indicate about the enzyme-substrate interaction?

    • A) High affinity
    • B) Low affinity
    • C) High specificity
    • D) Low specificity

    Answer: Low affinity

    Explanation: A high Km indicates low affinity of the enzyme for its substrate, requiring higher substrate concentrations for half-maximal velocity