The active site of an enzyme is
A) the region of a substrate that is changed by an enzyme.
B) the highly changeable portion of an enzyme that adapts to fit the substrates of various reactions.
C) the region of an enzyme that attaches to a substrate.
D) the region of a product that detaches from the enzyme.

Question

Quizplus · Accepted Answer

The active site of an enzyme is the specific region of the enzyme where a substrate binds and undergoes a chemical reaction. It is located on the surface of the enzyme and has a shape and chemical makeup that is complementary to the substrate. Therefore, choice C is the correct answer because it correctly identifies the active site as the region of the enzyme that attaches to a substrate.

The Active Site of an Enzyme Is