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State two differences… (Class 10 Science 2026, Q11a)

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ScienceCBSE Class 10 · Board exam 2026, set 31/1/1 · 2 marks · Very short answer

CBSE Class 10 Science 2026: question 11(a)

Set in the CBSE Class 10 board exam of 2026, paper 31/1/1, section A, question 11(a), for 2 marks. Try it first; the hints and our step-by-step solution are below.

Q11(a) · 2 marks · Very short answerLife Processes

State two differences between the act of chewing food and salivation on sight of food.

Source: official question paper from cbse.gov.in (PDF). See it in the full 2026 board paper, set 31/1/1.

Hints

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

Hint 1

Can you stop yourself from chewing? Can you stop your mouth from watering?

Hint 2

Which part of the brain controls involuntary actions such as salivation?

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. Difference 1: chewing food is a voluntary action done consciously. Salivation on seeing food is an involuntary (reflex) action.

    1 mark

  2. Difference 2: chewing is controlled by the forebrain (cerebrum). Salivation is controlled by the medulla in the hindbrain.

    1 mark

Answer: Chewing: voluntary, controlled by forebrain; Salivation: involuntary/reflex, controlled by medulla (hindbrain).

Where the marks are

  • Voluntary vs involuntary/reflex (1 mark)
  • Forebrain vs medulla of hindbrain (1 mark)

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 paper2026 board paper, set 31/1/1: 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.