Which of the following statements BEST describes the Michaelis-Menton constant KM?
A) It is numerically equal to the affinity between the enzyme and its substrate.
B) It is numerically equal to the substrate concentration required to reach half maximal velocity for an enzyme-catalyzed reaction.
C) It is a measure of the rate of a catalytic process.
D) It is a measure of enzyme efficiency.
E) It has units of concentration.
Correct Answer:
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