Which Statement About the Feedback Inhibition of Enzymes Is False

Multiple Choice

Which statement about the feedback inhibition of enzymes is false?

A) It is usually exerted through allosteric effects.
B) It is directed at the enzyme that catalyzes the commitment step in a metabolic pathway.
C) It affects the rate of a reaction,not the concentration of the enzyme.
D) It acts by permanently modifying the active site.
E) It is an example of reversible inhibition.