The portion of an enzyme where the substrate "fits" during the reaction is called the
A)active site.
B)action site.
C)reaction site.
D)substrate site.

Question

Quizplus · Accepted Answer

The active site of an enzyme is the specific region where the substrate binds and the chemical reaction takes place. This is where the enzyme catalyzes the conversion of the substrate into products. The other answer choices ("action site" and "reaction site") are not commonly used terms to describe this aspect of enzyme function, and "substrate site" is not accurate as the site is not specifically for the substrate, but rather for the interaction between the enzyme and substrate.

The Portion of an Enzyme Where the Substrate "Fits" During