Biology Biotechnology and Its Application All Topic Question For Revision Test Single Correct MCQ
Published on: August 13, 2026

Why insulin is not administered orally to diabetic patient?

A
It is bitter in taste
B
It is peptide & can be digested
C
It will lead to sudden decrease in blood sugar if given orally
D
It leads to peptic ulcer if given orally

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Text Solution

Verified by Experts
The correct answer is:
B

Insulin is a protein (peptide hormone). If taken orally, it gets digested by proteolytic enzymes in the stomach and intestine, so it becomes inactive before reaching the blood.

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