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Class 10 Biology · Chapter 3 · Test 1

Test 1: Blood and Its Components, Human Heart

MCQs

30 questions · 25 min · 30 marks

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Sample questions

The first 5 of 30. Try each one, then tap to see the answer.

  1. Question 1

    Which component of blood is mainly responsible for carrying oxygen?

    • AWhite blood cells
    • BPlatelets
    • CRed blood cells
    • DPlasma
    Show answer

    Answer: C

    Red blood cells contain haemoglobin which transports oxygen.

  2. Question 2

    A person with low platelet count is likely to face difficulty in:

    • AFighting infections
    • BBreathing
    • CClotting blood
    • DTransporting oxygen
    Show answer

    Answer: C

    Platelets form clots to prevent bleeding.

  3. Question 3

    When fibrinogen makes blood clot it separates from blood and the rest is;

    • APlasma
    • BLymph
    • CSerum
    • DPus
    Show answer

    Answer: C

    If fibrinogen is removed from blood plasma the rest is called serum.

  4. Question 4

    Which of the following contains deoxygenated blood in an adult human?

    • ALeft atrium
    • BPulmonary artery
    • CPulmonary vein
    • DAorta
    Show answer

    Answer: B

    Pulmonary artery carries deoxygenated blood from heart to lungs.

  5. Question 5

    Which heart chamber has the thickest walls?

    • ARight atrium
    • BLeft atrium
    • CLeft ventricle
    • DRight ventricle
    Show answer

    Answer: C

    The left ventricle is the largest and thickest and strongest chamber.

More tests in Human Blood Circulatory System

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