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BiologyCBSE Class 12 · Board exam 2023, set 57/1/1 · 1 mark · MCQ

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 GlandHormoneFunction
(a)Sertoli cellsTestosteroneDevelopment of secondary sexual characteristics
(b)PlacentaEstrogenInitiates secretion of milk
(c)Leydig cellsAndrogenInitiates the production of sperms
(d)OvaryFSHStimulates follicular development
  1. (A)Sertoli cells, Testosterone, Development of secondary sexual characteristics
  2. (B)Placenta, Estrogen, Initiates secretion of milk
  3. (C)Leydig cells, Androgen, Initiates the production of sperms
  4. (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. Leydig cells secrete androgens, which initiate spermatogenesis, so (C) is correct.

    1 mark
  2. 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)

The question is transcribed from the official paper; figures are described in words. The solution, hints and chapter tag are ours. Spotted an error? Write tosupport@questionbuddy.in.