An Enzyme with High Activity in an Acidic Environment Is

Question

An enzyme with high activity in an acidic environment is
A) amylase.
B) pepsin.
C) gastrin.
D) trypsin.
E) sucrose.

Accepted Answer

Pepsin is a digestive enzyme that works optimally in the acidic environment of the stomach (pH 1.5-2.5). This is because pepsin is denatured and loses its ability to catalyze the breakdown of proteins in a less acidic environment. The other enzymes listed do not have a high activity in an acidic environment.