Which is true about the activity of an enzyme?
A)Lower temperatures generally increase enzyme activity.
B)Enzymes are altered or destroyed by the reaction.
C)Enzymes are not products of the reactions they catalyze.
D)Rates of reactions are independent of substrate concentration.

Question

Quizplus · Accepted Answer

Enzymes are not products of the reactions they catalyze. Enzymes are proteins that speed up chemical reactions by lowering their activation energy. After catalyzing the reaction, enzymes are not altered or destroyed and they remain unchanged and ready for another reaction. The rate of reaction increases with an increase in substrate concentration until the enzyme becomes saturated, beyond which the rate reaches a plateau. Temperature affects enzyme activity, with a moderate increase in temperature increasing the rate of reaction until the enzyme denatures at high temperatures.

Which Is True About the Activity of an Enzyme