MCQ Questions

Question No. 1

The blood cells that are a part of the bodies defence mechanism are–

Answer :

RBCs

WBCs

platelets

all of these

Question No. 2

The blood is red because of–

Answer :

the haemoglobin in the RBCs

the plasma component of the blood

bleeding of the germs in the body

the clotting effect of platelets

Question No. 3

The blood vessels that carry blood towards the heart is–

Answer :

veins

arteries

pulmonary vein

both (a) and (c)

Question No. 4

The major constituent of RBC is –

Answer :

plasma

hemoglobin

oxygen

water

Question No. 5

The blood group of a person who has antigen A and B, on the RBC will be

Answer :

blood group A

blood group B

blood group AB

blood group O

Question No. 6

The pulse represents –

Answer :

The pressure blood puts on the veins.

The shutting down of the valves inside the heart

The volume of blood in the body.

The rhythmic contraction and relaxation of the ventricle.

Question No. 7

The heart is divided into left and right half by –

Answer :

the valves

the atria

the ventricles

the septum

Chapter

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