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

Question

Quizplus · Accepted Answer

The Michaelis constant (Km) is a parameter that is used to describe the affinity of an enzyme for its substrate. A low Km value indicates high affinity, meaning the enzyme can effectively bind substrate at low concentrations, while a high Km value suggests lower affinity. It is not directly related to the molecular weight of the enzyme, its resistance to denaturation, or the percentage of polar amino acids in the enzyme.

The Michaelis Constant Is