CBSE Class 12 Biology 2023: question 10
Set in the CBSE Class 12 board exam of 2023, paper 57/1/1, section A, question 10, for 1 mark. Try it first; the hints and our step-by-step solution are below.
Q10 · 1 mark · MCQHuman Reproduction
In which one of the following options does the endocrine gland correctly match with its hormonal secretion and its function ?
| Endocrine Gland | Hormone | Function | |
|---|---|---|---|
| (a) | Sertoli cells | Testosterone | Development of secondary sexual characteristics |
| (b) | Placenta | Estrogen | Initiates secretion of milk |
| (c) | Leydig cells | Androgen | Initiates the production of sperms |
| (d) | Ovary | FSH | Stimulates follicular development |
- (A)Sertoli cells, Testosterone, Development of secondary sexual characteristics
- (B)Placenta, Estrogen, Initiates secretion of milk
- (C)Leydig cells, Androgen, Initiates the production of sperms
- (D)Ovary, FSH, Stimulates follicular development
Source: official question paper from cbse.gov.in (PDF). See it in the full 2023 board paper, set 57/1/1.
Hints
Open one hint at a time and try again before the next.
Hint 1
Which testis cells are interstitial and endocrine?
Hint 2
FSH is a pituitary hormone.
Step-by-step solution
Each step shows the marks it earns, as an examiner would award them. Checked by an independent re-solve from the question paper.
- 1 mark
Leydig cells secrete androgens, which initiate spermatogenesis, so (C) is correct.
The other options are wrong: Sertoli cells do not secrete testosterone, the placenta's estrogen does not initiate milk secretion, and FSH comes from the pituitary, not the ovary.
Answer: Option (C)
Where the marks are
- Chooses Leydig cells – androgen – initiation of spermatogenesis (1 mark)
Revise the chapter
- Chapter: Human Reproduction (notes, formulas, where marks are lost and every past question)
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