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Unlike animals, plants… (Class 10 Science SQP 2025-26, Q10)

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ScienceCBSE Class 10 · Sample paper, session 2025-26 · 2 marks · Very short answer

CBSE Class 10 Science sample paper 2025-26: question 10

From the official CBSE sample question paper for 2025-26, section A, question 10, for 2 marks. Try it first; the hints and our step-by-step solution are below.

Q10 · 2 marks · Very short answerLife Processes

Unlike animals, plants do not have any excretory products as they do not eat food. Comment upon the statement with justification.

Source: official sample paper from cbseacademic.nic.in (PDF). See it in the full Sample paper 2025-26.

Hints

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

Hint 1

Do plants carry out photosynthesis and respiration? What is left over?

Hint 2

Think of stomata, vacuoles, resins and gums, and falling leaves.

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. The statement is incorrect. Plants also carry out metabolic activities such as photosynthesis and respiration, and these produce waste products. Plants simply get rid of their wastes in ways different from animals.

    1 mark

  2. Way 1: Oxygen, a by-product of photosynthesis, and CO from respiration are removed by diffusion through the stomata. Excess water is lost by transpiration.

    ½ mark

  3. Way 2: Other wastes are stored in vacuoles, or in old leaves and bark that fall off. Some are stored as resins and gums in old xylem, and some are released into the soil around the roots.

    ½ mark

Answer: The statement is wrong; plants do produce wastes (O₂, CO₂, water, resins, gums, etc.) and remove them through stomata and transpiration, storage in vacuoles, resins and gums, and shedding of leaves.

Where the marks are

  • States that the statement is wrong because plants produce metabolic wastes (1 mark)
  • Gives any two valid ways plants get rid of wastes (½ mark each)

Revise the chapter

  • Chapter: Life Processes (notes, formulas, where marks are lost and every past question)
Practise this chapterBoard-style questions from Life Processes, one at a time, marked against the answer key and marking points.Back to the full paperSample paper 2025-26: 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.