An enzyme, citrate synthase, in the Krebs cycle is inhibited by ATP. This is an example of all of the following EXCEPT
A) noncompetitive inhibition.
B) allosteric inhibition.
C) competitive inhibition.
D) feedback inhibition.

Question

Quizplus · Accepted Answer

Citrate synthase inhibition by ATP is not competitive inhibition because ATP does not compete with the substrate for the active site.

An Enzyme, Citrate Synthase, in the Krebs Cycle Is Inhibited