When an Enzyme's Activity is Destroyed by Heat or a Change

Question

When an enzyme's activity is destroyed by heat or a change in pH, the enzyme is said to be
A) broken.
B) toxic.
C) conjugated.
D) tertiary.
E) denatured.

Accepted Answer

When an enzyme's activity is destroyed by heat or a change in pH, the enzyme is said to be denatured. Denaturation is the process in which the usual structure of a protein is disrupted. This can occur when an enzyme is subjected to high temperatures or extreme pH values, causing it to lose its function.