12. The Michaelis-Menten constant (K_M) is
(A) a rough measure of the affinity of the enzyme for the substrate
(B) a measure of the resistance of the enzyme to denaturation
(C) related to the molecular weight of the enzyme
(D) a reflection of the percentage of polar amino acids in the enzyme

1. 題目解析題目詢問的是關於米氏常數...