In a first order enzyme-catalyzed reaction,the velocity of the reaction is proportional to the ________,while in a zero order enzyme-catalyzed reaction,the velocity of the reaction is proportional to the ________.
A)amount of enzyme;concentration of substrate
B)concentration of substrate;amount of enzyme
C)concentration of substrate;speed of the reaction
D)speed of the reaction;concentration of substrate

Question

Quizplus · Accepted Answer

In a first order enzyme-catalyzed reaction, the velocity of the reaction is proportional to the concentration of substrate. This means that as the concentration of substrate increases, the rate of the reaction also increases. In a zero order enzyme-catalyzed reaction, the enzyme is saturated with substrate and the velocity of the reaction becomes independent of the concentration of substrate. Instead, the velocity of the reaction is proportional to the amount of enzyme present. So, the correct answer is B.

In a First Order Enzyme-Catalyzed Reaction,the Velocity of the Reaction