What Term Describes Enzymes That are Activated by Proteolytic Cleavage

Question

What term describes enzymes that are activated by proteolytic cleavage?
A) phosphatases
B) isozymes
C) kinases
D) zymogens
E) apoenzymes

Accepted Answer

Zymogens are inactive precursors of enzymes that are activated by proteolytic cleavage. This mechanism is common in digestive enzymes, such as pepsinogen being activated to pepsin in the stomach.