The number of substrate molecules converted to product in a given unit of time by a single enzyme molecule at saturation is referred to as the:
A) dissociation constant.
B) half-saturation constant.
C) maximum velocity.
D) Michaelis-Menten number.
E) turnover number.

Question

Quizplus · Accepted Answer

The turnover number, also known as kcat, represents the number of substrate molecules that can be converted to product by a single enzyme molecule per unit time when the enzyme is fully saturated with substrate. It is a measure of the catalytic efficiency of the enzyme.

The Number of Substrate Molecules Converted to Product in a Given