Question

the function of hcl in the stomach includes ______ .
a chemical digestion of fats
b activation of lipase
c activationof pepsin from pepsinogen
d activationof salivary amylase

Explanation:

• Option A: Chemical digestion of fats is mainly done by lipase in the small intestine, not HCl in the stomach.
• Option B: Lipase activation is not a function of HCl; lipase acts in the small intestine.
• Option C: HCl in the stomach activates pepsinogen to pepsin, which is crucial for protein digestion.
• Option D: Salivary amylase works in the mouth and is inactivated by stomach acid (HCl).

Answer:

C. activation of pepsin from pepsinogen