In the stomach,_____ participate in the chemical digestion of protein.

Question

Quizplus · Accepted Answer

Hydrochloric acid and pepsin are the substances that participate in the chemical digestion of protein in the stomach. Hydrochloric acid is responsible for lowering the pH in the stomach to an acidic level, which activates the enzyme pepsin. Pepsin is then able to break down protein into smaller peptides. Mucus and cholecystokinin do not participate in the chemical digestion of protein. Gastric lipase and intrinsic factor are involved in the digestion and absorption of fat and vitamin B12, respectively. Pancreatic amylase is an enzyme that breaks down carbohydrates in the small intestine.

In the Stomach,_____ Participate in the Chemical Digestion of Protein