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Topic Digestive enzymes
Asked 2 times across 2 UPSC exams over 28 years (1994–2022), peaking in 1994.
Key insights
- Most tested in CSE — 1 of 2 PYQs
- Most asked in 1994
- Recurs across 2 years (1994–2022)
How it travelled across exams
First appearance in each exam — the same idea, reframed.
CSE 1994 → NDA 2022
How the concept evolved
Long-running — most appearances (1 of 2) predate 2016, and it still returns.
Sample questions
You've seen the pattern — here are a few of the actual PYQs.
NDA2022
The protein-digesting enzyme secreted by the stomach wall in case of mammals is called
- A chitinase
- B amylase
- C pepsin ✓
- D trypsin
✓ Correct answer: (C)
Science & Technology › Biology & Health
CSE1994
Rennin and lactase, the enzymes required to digest milk, disappear in the human body by the age of
- A two
- B three ✓
- C five
- D eight
✓ Correct answer: (B)
Science & Technology › Biology & Health
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