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Consider the following… (Class 10 Science 2023, Q9)

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

CBSE Class 10 Science 2023: question 9

Set in the CBSE Class 10 board exam of 2023, paper 31/1/1, section A, question 9, for 1 mark. Try it first; the hints and our step-by-step solution are below.

Q9 · 1 mark · MCQLife Processes

Consider the following statements about small intestine and select the one which is NOT correct :

  1. (A)The length of the small intestine in animals differs as it depends on the type of food they eat.
  2. (B)The small intestine is the site of complete digestion of food.
  3. (C)The small intestine receives secretions from liver and pancreas.
  4. (D)The villi of the small intestine absorb water from the unabsorbed food before it gets removed from the body via the anus.

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

Hints

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

Hint 1

Recall the separate jobs of the small intestine and the large intestine.

Hint 2

Where is excess water removed from undigested food?

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. Statements (A), (B) and (C) are true. Herbivores have a longer small intestine than carnivores. Digestion is completed in the small intestine. It receives bile from the liver and pancreatic juice from the pancreas.

  2. Water is absorbed from the unabsorbed food in the large intestine, not by the villi of the small intestine. So (D) is the incorrect statement.

    1 mark

Answer: Option (D)

Where the marks are

  • Identifies (D) as incorrect, since water absorption happens in the large intestine (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 paper2023 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.