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Consider the following three… (Class 10 Science 2023, Q14)

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ScienceCBSE Class 10 · Board exam 2023, set 31/6/1 · 1 mark · MCQ

CBSE Class 10 Science 2023: question 14

Set in the CBSE Class 10 board exam of 2023, paper 31/6/1, section A, question 14, for 1 mark. Try it first; the hints and our step-by-step solution are below.

Q14 · 1 mark · MCQHow do Organisms Reproduce?

Consider the following three flowers namely X, Y and Z. Which flower(s) would develop into a fruit?

  1. (A)'X' only
  2. (B)'Z' only
  3. (C)'X' and 'Y' only
  4. (D)'Y' and 'Z'

Figure in the paper: Three flower diagrams labelled Flower X, Flower Y and Flower Z. Flower X shows a flower with a visible ovary and stigma/style region. Flower Y shows only a stamen-like structure and no visible ovary. Flower Z shows stamens and an ovary region differing from X. See it in the official paper.

Source: official question paper from cbse.gov.in (PDF). See it in the full 2023 board paper, set 31/6/1.

Hints

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

Hint 1

Which part of a flower becomes the fruit?

Hint 2

Look for the flowers that have that part.

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 fruit develops from the ovary, so only a flower that has a pistil (ovary) can form a fruit.

  2. Flowers X and Y bear a pistil, while Z bears only stamens. Hence the answer is option (C).

    1 mark

Answer: 'X' and 'Y' only, option (C)

Where the marks are

  • Flowers with a pistil (ovary) form fruit (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 paper2023 board paper, set 31/6/1: 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.