試題詳解

74. Enzyme kinetics provide the values of the Michaelis constant K_M and the turnover number Kcat. Which of the following statements is true?
(A) K_M indicates the substrate concentration at which the reaction rate is V_max
(B) K_M measures the rate of the catalytic process
(C) K_M indicates the substrate binding affinity； the smaller K_M indicates the higher substrate binding affinity
(D) In enzyme inhibition study, a competitive inhibitor decreases the apparent K_M
(E) All of the above