Biology

Question 1

1The vessel that carries oxygenated blood from the lungs to the heart is the

Easy

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

Question 2

2The blood vessel that carries blood away from the heart is the

Easy

A. artery B. sinus C. vein D. capillary

Question 3

3Blood is a connective tissue.

Easy

A. True B. False

Question 4

4Capillaries are adapted for exchange because their walls are

Easy

A. muscular B. one cell thick C. very thick D. lined with valves

Question 5

5A person with blood group AB has ___ antigens.

Medium

Your answer (fill in the blank)

Question 6

6Veins have valves to

Easy

A. increase pressure B. prevent backflow of blood C. speed up blood D. carry oxygen

Question 7

7The condition in which blood pressure is persistently high is

Easy

A. angina B. leukaemia C. hypertension D. anaemia

Question 8

8The normal resting pulse rate of an adult is about

Easy

A. 150 B. 30 C. 72 beats per minute D. 200

Question 9

9The fluid part of the blood is ___.

Easy

Your answer (fill in the blank)

Question 10

10The upper chambers of the heart are the ___.

Easy

Your answer (fill in the blank)