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Name the type of blood… (Class 10 Science 2023, Q23a)

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ScienceCBSE Class 10 · Board exam 2023, set 31/1/1 · 2 marks · Very short answer

CBSE Class 10 Science 2023: question 23(a)

Set in the CBSE Class 10 board exam of 2023, paper 31/1/1, section B, question 23(a), for 2 marks. Try it first; the hints and our step-by-step solution are below.

Q23(a) · 2 marks · Very short answerLife Processes

Name the type of blood (oxygenated / deoxygenated) transported by each of the following mentioning the path (i.e. from one organ (which place) to another (which place)).

  1. (i)

    Vena cava

    0 marks
  2. (ii)

    Pulmonary artery

    0 marks

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

Veins bring blood back to the heart; arteries take blood away from it.

Hint 2

The pulmonary artery is the one artery that carries blood which still needs oxygen. Where must that blood go?

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) Vena cava carries deoxygenated blood.

    ½ mark

  2. (i) Path: from the body organs to the heart (right atrium).

    ½ mark

  3. (ii) Pulmonary artery carries deoxygenated blood.

    ½ mark

  4. (ii) Path: from the heart (right ventricle) to the lungs, where the blood is oxygenated.

    ½ mark

Answer: (i) Vena cava: deoxygenated, from body to heart (right atrium); (ii) Pulmonary artery: deoxygenated, from heart (right ventricle) to lungs

Where the marks are

  • Vena cava – deoxygenated (½ mark)
  • Body → heart (½ mark)
  • Pulmonary artery – deoxygenated (½ mark)
  • Heart → lungs (½ 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.