Which of these substances is a precursor to an enzyme that functions in the stomach
A)pepsinogen
B)HCl
C)intrinsic factor
D)gastrin

Question

Quizplus · Accepted Answer

Pepsinogen is a precursor to the enzyme pepsin, which functions in the stomach to break down proteins. HCl and intrinsic factor are both important for digestion, but they do not directly function as enzymes in the stomach. Gastrin is a hormone that stimulates the release of digestive enzymes and acid, but it is not a precursor to an enzyme itself.

Which of These Substances Is a Precursor to an Enzyme