Question

B. Which of the following statements are correct ?

1. Proteins are digested in the stomach and small intestine to amino acids.

2. Proteins are not hydrolyzed in the stomach.

3. Proteins are digested in the small intestine by the action of pepsin.​

Answer 1

Answer:

proteins are digested in the stomach and small intestine to Amino acids

Answer 2

correct option is 1. proteins are digested in the stomach and small intestine into amino acid.

Explanation:

• Protein digestion begins in stomach. Chief cell of the stomach secrete pepsinogen which is converted to active form of pepsin by HCL.
• Pepsin act on protein and hydrolyzed protein into smaller peptide.
• Partially digested protein come into small intestine where pancreatic protease like trypsin, chymotrypsin, carboxypeptidase act on protein and convert them into smaller peptide and then dipeptidase and aminopeptidase synthesized by brush border of intestine convert smaller peptide into amino acids.
• So, option 1 is correct.