ATP is a negative allosteric effector for glycogen phosporylase. This is an example of
A) feedback inhibition.
B) positive cooperativity.
C) negative cooperativity.
D) competitive inhibition.

Question

Quizplus · Accepted Answer

Feedback inhibition occurs when an end product of a pathway inhibits an enzyme involved in its synthesis pathway. ATP, being a product of energy metabolism, inhibits glycogen phosphorylase, thus regulating glycogen breakdown in response to the cell's energy status.

ATP Is a Negative Allosteric Effector for Glycogen Phosporylase