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Topic Endocrine system
Asked 4 times across 3 UPSC exams over 39 years (1981–2020), peaking in 2020.
Key insights
- Most tested in CDS — 2 of 4 PYQs
- Most asked in 2020
- Recurs across 3 years (1981–2020)
How it travelled across exams
First appearance in each exam — the same idea, reframed.
CSE 1981 → CDS 2014 → CAPF 2020
How the concept evolved
Long-running — most appearances (2 of 4) predate 2016, and it still returns.
Sample questions
You've seen the pattern — here are a few of the actual PYQs.
CAPF2020
In human body, the hormone which is secreted into blood and which controls the rate of heart beat is
- A Adrenaline ✓
- B Thyroxine
- C Insulin
- D Testosterone
✓ Correct answer: (A)
Science & Technology › Biology & Health
CDS2020
Which of the following endocrine glands is not found in pair in humans?
- A Adrenal
- B Pituitary ✓
- C Testis
- D Ovary
✓ Correct answer: (B)
Science & Technology › Biology & Health
CDS2014
Match List-I with List-II and select the correct answer using the code given below the Lists
| List I (Gland) | List II (Hormone) |
|---|
| A. Pancreas | 1. Cortisol |
| B. Pituitary | 2. Vitamin D |
| C. Adrenals | 3. Thyroid stimulating hormone |
| D. Kidneys | 4. Glucagon |
Codes:
- A A-4 B-3 C-1 D-2 ✓
- B A-4 B-1 C-3 D-2
- C A-2 B-3 C-4 D-1
- D A-2 B-3 C-1 D-4
✓ Correct answer: (A)
Science & Technology › Biology & Health
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