An enzyme catalyzes a substrate into a final product. When the concentration of the final product is high enough, it binds to a regulatory site on the enzyme. This binding at the regulatory site changes the shape of the enzyme, which prevents it from binding the substrate and prevents formation of more final product. This is an example of a(n) ________.
A) posttranslational modification
B) allosteric enzyme
C) translational repressor
D) methylation

Question

Quizplus · Accepted Answer

This scenario describes allosteric regulation, where the binding of a molecule at a regulatory site on the enzyme changes its shape and activity. Posttranslational modification, translational repression, and methylation are not specifically mentioned or relevant to the scenario.

An Enzyme Catalyzes a Substrate into a Final Product