Digestion and Absorption Question 64

64. Where is protein digestion accomplished?

[1991]

(a) Stomach

(b) Ileum

(c) Rectum

(d) Duodenum

Show Answer

Answer : b

Hints & Solution

(b) Protein digestion starts in the stomach with the action of enzyme pepsin. In the duodenum it is performed by the action of trypsin, chymotrypsin & carboxypeptidases (from pancreatic juice). Aminopeptidases & dipeptidases, enterokinase act in jejunum and it ends in the ileum.