For an enzyme-catalyzed reaction,doubling the concentration of enzyme will:
A)double the Vmₐₓ.
B)halve the Vmₐₓ.
C)double the Km.
D)halve the Km.

Question

Quizplus · Accepted Answer

Doubling the concentration of enzyme will increase the rate of reaction, and therefore double the Vmₐₓ. This is because the enzyme concentration is a key factor in determining the maximum rate of an enzymatic reaction. However, the Km (Michaelis-Menten constant) is a measure of the enzyme-substrate affinity, and is not directly affected by changes in enzyme concentration. Therefore, choices C and D are incorrect. Choice B is incorrect because halving the Vmₐₓ would occur if the enzyme concentration decreased, not increased.

For an Enzyme-Catalyzed Reaction,doubling the Concentration of Enzyme Will