Cooperativity is a form of allosteric activation in which
A)the product of a metabolic pathway serves as a competitive inhibitor of an early enzyme in the pathway.
B)all of the enzymes in a metabolic pathway are contained within a single multienzyme complex.
C)completion of one step in a metabolic pathway is required before a subsequent step can occur.
D)binding of a substrate molecule to one active site in a multisubunit enzyme stimulates the binding of substrate molecules to the active sites of other subunits.

Question

Quizplus · Accepted Answer

Cooperativity occurs when binding of a substrate molecule to one active site in a multisubunit enzyme stimulates the binding of substrate molecules to the active sites of other subunits. This results in a positive feedback loop where the binding of one substrate molecule increases the likelihood of other substrate molecules binding to the enzyme, leading to a rapid increase in enzyme activity.

Cooperativity Is a Form of Allosteric Activation in Which