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Write one function each of… (Class 10 Science 2025, Q24a)

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

CBSE Class 10 Science 2025: question 24(a)

Set in the CBSE Class 10 board exam of 2025, paper 31/2/1, section B, question 24(a), for 2 marks. Try it first; the hints and our step-by-step solution are below.

Q24(a) · 2 marks · Very short answerHow do Organisms Reproduce?

Write one function each of the following, in a seed :

  1. (i)

    Seed coat

    0 marks
  2. (ii)

    Cotyledon

    0 marks
  3. (iii)

    Radicle

    0 marks
  4. (iv)

    Plumule

    0 marks

Source: official question paper from cbse.gov.in (PDF). See it in the full 2025 board paper, set 31/2/1.

Hints

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

Hint 1

Think of a germinating gram or bean seed.

Hint 2

One part goes down into the soil and one grows up towards light.

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. (i) Seed coat: it is the outer cover that protects the embryo and the seed from injury and drying out.

    ½ mark

  2. (ii) Cotyledon: it stores food for the embryo, which is used when the seed germinates.

    ½ mark

  3. (iii) Radicle: it grows into the root when the seed germinates.

    ½ mark

  4. (iv) Plumule: it grows into the shoot when the seed germinates.

    ½ mark

Answer: (i) protection; (ii) food storage; (iii) future root; (iv) future shoot

Where the marks are

  • Seed coat protects the seed (½ mark)
  • Cotyledon stores food (½ mark)
  • Radicle forms the root (½ mark)
  • Plumule forms the shoot (½ 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 31/2/1: 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.