Zoology · Human Health and Diseases
NEET (UG) 2025 — Question 152
Why can't insulin be given orally to diabetic patients?
- Option A:
Human body will elicit strong immune response
- Option B:Correct
It will be digested in Gastro-Intestinal (GI) tract
- Option C:
Because of structural variation
- Option D:
Its bioavailability will be increased
Answer: B
Step-by-step solution
Insulin is a protein hormone. When taken orally, it passes through the gastrointestinal tract. Proteolytic enzymes in the stomach and intestine digest proteins. Therefore, oral insulin would be broken down and lose its activity. Thus, insulin cannot be given orally and must be injected. The correct option is B.
Answer key and solution verified before publishing.
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- Exam
- NEET (UG) 2025
- Paper
- 2025 paper
- Subject
- Zoology
- Chapter
- Human Health and Diseases
- Topic
- Common Diseases in Humans
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