Question

Digestion of protein is necessary due to

• A. Proteins are not absorbed as such
• B. Proteins are large molecules
• C. Proteins have complex structure
• D. All of the above

Answer 1

Answer: (D)

All of the above

Proteins are polymers made of monomers called amino acids. These are large complex biomolecules that can be primary, secondary, tertiary or quaternary. These large structures cannot be absorbed directly into the blood and have to be digested. The major process of protein digestion takes place in the stomach. Thus the correct answer is option D.