Question

Where is protein digestion accomplished?

(a) stomach

(b) ileum

(c) rectum

(d) duodenum.

Answer 1

Pepsin is an enzyme of the stomach which breaks the peptide bonds of the protein and forms polypeptide chains. These polypeptide chains then moves into the ileum of the small intestine where digestion will be completed by the other three enzymes- trypsin, chymotrypsim and carboxypeptidase. Ileum is the longest and final part of the small intestine where these three enzymes complete the digestion of the polypeptide chains finally.

So, right answer is C- ileum