1.
Which of the following statements distinguishes arteries from veins?
Arteries have relatively narrow lumen while veins have relatively wide lumen.
Arteries transport blood to the heart while veins carry blood away from the heart.
Arteries carry deoxygenated blood while veins carry oxygenated blood.
Arteries have valves while veins do not have valves.
2.
The function of the white blood cells in humans is to
produce haemoglobin.
ensure blood clot during an injury.
produce antibodies to engulf disease-causing organisms.
produce digestive enzymes.
3.
The blood in mammals is composed of
a red liquid
red blood cells and white blood cells
liquid plasma and solid corpuscles
blood protein and glycerol
4.
Which of the following gives the correct order by which blood circulates continuously through the circulatory system?
Heart → veins → organs → arteries → heart
Heart → arteries → organs → veins → heart
Heart → arteries → veins → organs → heart
Heart → organs → arteries → veins → heart
5.
Which of the following carry deoxygenated blood in the body?
Arteries
Red blood cells
Valves
Veins
6.
About 55% of blood is made up of the plasma while the remaining 45% is made up of
Cells
Cochlea
Iris
Retina
7.
The name of the smallest blood vessel in humans is
artery.
arteriole.
capillary.
vein.
venule.
8.
Blood circulates to all parts of the human body with the help of the
heart.
kidney.
lungs.
liver.
9.
The liquid component of the blood is known as
cytoplasm.
haemoglobin.
plasma.
platelets.
10.
Which of the following substances are carried by the blood?
I. Nutrients
II. Urine
III. Oxygen
IV. Carbon dioxide
II and III only
I, II and IV only
I and III only
I, III and IV only
11.
The function of blood platelets is to
carry carbon dioxide.
fight against diseases.
help in clotting.
help maintain constant body temperature.
12.
Arteries are blood vessels which carry
blood to the heart.
carbon dioxide to the air.
blood away from the art.
oxygen to the lungs.
13.
Which of the following structures is not involved in blood circulation?
Capillary
Heart
Muscle
vein
14.
All veins in the body carry blood that does not contain oxygen with the exception of the veins from the
heart.
kidneys.
lungs.
liver.
15.
Oxygen is made available to all cells of the human body by the
plasma.
platelets.
white blood cells.
red blood cells.
16.
Which of the following blood vessels carries deoxygenated blood?
Aorta
Pulmonary artery
Pulmonary vein
Renal artery
17.
Which of the following components of human blood is dissolved in the plasma?
Mineral salts
Phagocytes
Platelets
Red blood cells
18.
Which of the following substances are carried by the blood?
I. Hormones
II. Urine
III. Oxygen
IV. Carbon dioxide
I and III only
II and III only
I, II and IV only
I, III and IV only
19.
The best way of protecting oneself from high blood pressure is to
consume alcoholic drinks.
eat high carbohydrate diet.
engage in smoking.
exercise regularly.
20.
The component of the human blood which transport oxygen to all parts of the body
plasma.
platelets.
red blood cells.
white blood cells.
21.
The function of the platelets in the circulatory system of humans is to
Transport oxygen
Transport carbon dioxide
Clot of blood
Defend the blood
22.
The blood vessel that carries oxygenated blood from the lungs to the heart is unknown as
pulmonary artery.
pulmonary vein.
vena cana.
aorta.
23.
The function of the platelets in the circulatory system of humans is to
transport oxygen.
transport carbon dioxide.
defend the body.
cloth the blood.
24.
Which of the folloeing substances are carried by the blood?
I. Nutrients
II. Urine
III. Oxygen
IV. Carbon dioxide
II and III only
I, II and IV only
I and III only
I, III and IV only
25.
The function of the white blood cells in humans is to
produce haemoglobin.
produce digestive enzymes.
ensure blood clot during an injury.
produce antibodies to fight disease causing organisms.
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