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BIOLOGY MCQ

The Circulatory System · ICSE STD 6 (ICSE - English Medium). 14 questions.

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14 questions · timed · auto-graded

MCQ 11 Mark
The blood tastes saltish due to the dissolved.
  • ✓
    Sodium chloride
  • B
    Potassium chloride
  • C
    Ammonium nitrate
  • D
    Sodium nitrate
Answer
Correct option: A.
Sodium chloride
Sodium chloride
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MCQ 21 Mark
Pulmonary vein carries
  • ✓
    Oxygenated blood
  • B
    Deoxygenated blood
  • C
    Glucose$-$rich blood
  • D
    $CO_2$ laden blood
Answer
Correct option: A.
Oxygenated blood
Oxygenated blood
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MCQ 31 Mark
Sphygmomanometer measures
  • A
    Pulse rate
  • B
    Heart beat
  • ✓
    Blood pressure
  • D
    Brain activity
Answer
Correct option: C.
Blood pressure
Blood pressure
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MCQ 41 Mark
The only artery which carries deoxygenated blood is called,
  • A
    Hepatic artery
  • ✓
    Pulmonary artery
  • C
    Aorta
  • D
    Renal artery
Answer
Correct option: B.
Pulmonary artery
Pulmonary artery
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MCQ 61 Mark
Blood Capillary is a
  • A
    Broad tube
  • B
    Artery with thick wall
  • C
    Vein with large lumen
  • ✓
    Narrow tube made up of endothelium only
Answer
Correct option: D.
Narrow tube made up of endothelium only
Narrow tube made up of endothelium only
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MCQ 71 Mark
Function of WBCs is to
  • A
    Transport oxygen
  • B
    Help in clotting of blood
  • ✓
    Provide immunity
  • D
    Provide storage of food.
Answer
Correct option: C.
Provide immunity
Provide immunity
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MCQ 81 Mark
The four blood groups in humans are
  • A
    A, B, C and D
  • B
    A, B, AB and C
  • ✓
    A, B, AB and O
  • D
    A, B, AB and OO
Answer
Correct option: C.
A, B, AB and O
A, B, AB and O
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MCQ 91 Mark
The blood cells which protect the body from infection are
  • A
    RBCs
  • B
    platelets
  • ✓
    WBCs
  • D
    all the above
Answer
Correct option: C.
WBCs
WBCs
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MCQ 101 Mark
The heartbeat is measured by an instrument called
  • A
    thermometer
  • B
    sphygmomanometer
  • ✓
    stethoscope
  • D
    none of the above
Answer
Correct option: C.
stethoscope
stethoscope
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MCQ 111 Mark
The blood vessels in which blood goes away from the heart to different body parts are
  • ✓
    arteries
  • B
    capillaries
  • C
    veins
  • D
    both arteries and veins
Answer
Correct option: A.
arteries
arteries
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MCQ 121 Mark
Find the odd one out, giving reason.
  • A
    RBC
  • B
    platelets
  • ✓
    anti-A
  • D
    WBC
Answer
Correct option: C.
anti-A
Anti-A.
Reason: RBC, platelets and WBC are three types of blood cells whereas anti-A is a type of antibody present in the blood plasma.
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MCQ 141 Mark
Human heart has
  • A
    one auricle and one ventricle.
  • B
    two auricles and one ventricle.
  • ✓
    two auricles and two ventricles.
  • D
    one auricle and two ventricles.
Answer
Correct option: C.
two auricles and two ventricles.
two auricles and two ventricles.
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