Science

Question 1

1The liquid part of blood is

Easy

A. plasma B. haemoglobin C. platelets D. serum only

Question 2

2The blood vessels that return blood to the heart are ___.

Easy

Your answer (fill in the blank)

Question 3

3A normal resting pulse rate of an adult is about

Easy

A. 20 beats per minute B. 150 beats per minute C. 72 beats per minute D. 5 beats per minute

Question 4

4Red blood cells contain

Easy

A. platelets B. antibodies C. haemoglobin, which carries oxygen D. plasma

Question 5

5White blood cells fight germs.

Easy

A. True B. False

Question 6

6Blood cells that help clotting are ___.

Easy

Your answer (fill in the blank)

Question 7

7The double circulation means blood passes through the heart

Hard

A. never B. three times C. once only D. twice in one complete circuit

Question 8

8The universal donor blood group is ___.

Hard

Your answer (fill in the blank)

Question 9

9The tiny blood vessels where exchange of materials takes place are

Easy

A. veins B. arteries C. alveoli D. capillaries

Question 10

10The largest artery in the body is the

Medium

A. pulmonary vein B. vena cava C. aorta D. capillary