Noncompetitive inhibition of enzymes occurs

Question

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Noncompetitive inhibition occurs when a substance binds to an enzyme at a site away from the active site, which causes a conformational change that makes the active site less effective. This is different from competitive inhibition, which occurs when a substance competes with the substrate for binding at the active site of an enzyme. Choice A describes the binding of a cofactor, which can be essential for enzyme function but is not necessarily inhibitory. Choice C describes a different mechanism entirely, in which the production of an enzyme is blocked, rather than its activity. Choice D is a form of competitive inhibition.

Noncompetitive Inhibition of Enzymes Occurs