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Give reasons: (Class 10 Science 2025, Q22)

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ScienceCBSE Class 10 · Board exam 2025, set 31/5/1 · 2 marks · Very short answer

CBSE Class 10 Science 2025: question 22

Set in the CBSE Class 10 board exam of 2025, paper 31/5/1, section B, question 22, for 2 marks. Try it first; the hints and our step-by-step solution are below.

Q22 · 2 marks · Very short answerHow do Organisms Reproduce?

Give reasons:

  1. (a)

    The male reproductive organ responsible for formation of germ cells is located outside the abdominal cavity.

    1 mark
  2. (b)

    The roles of the glands, present along the path of the vas-deferens, are very significant.

    1 mark

Source: official question paper from cbse.gov.in (PDF). See it in the full 2025 board paper, set 31/5/1.

Hints

Open one hint at a time and try again before the next.

Hint 1

Think about what condition sperm formation needs that the inside of the abdomen cannot give.

Hint 2

Name the glands along the vas deferens and ask what their fluid does for the sperms.

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. (a) The testes lie in the scrotum, outside the abdominal cavity, because sperm formation needs a temperature about 2–3 °C lower than normal body temperature, which the scrotum provides.

    1 mark

  2. (b) The seminal vesicles and prostate gland add their secretions to the sperms. These secretions make the sperms move in a fluid, which helps in their transport, and also provide nutrition to the sperms.

    1 mark

Answer: (a) Testes need a temperature lower than body temperature for sperm formation; (b) gland secretions help transport sperms and nourish them.

Where the marks are

  • States that sperm formation needs a lower temperature than body temperature (1 mark)
  • States that the secretions help transport sperms and provide nutrition (1 mark)

Revise the chapter

Practise this chapterBoard-style questions from How do Organisms Reproduce?, one at a time, marked against the answer key and marking points.Back to the full paper2025 board paper, set 31/5/1: every question, by section.

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.