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Worksheets

Science Quiz

Total questions: 40

Worksheet time: 22mins

Name
Class
Date
1.

The liquid part of blood is called ………………..

(a)  

2.

Platelets help in blood clotting.

a)

True

b)

False

3.

Which blood vessel carries blood back to the heart?

a)

Artery

b)

Capillary

c)

Vein

d)

Aorta

4.

Which side of the heart contains oxygen-rich blood?

a)

Right side

b)

Left side

c)

Middle

d)

Bottom

5.

What is meant by double circulation?

a)

Blood flows once through the heart

b)

Blood flows twice through the heart

c)

Blood flows slowly

d)

Blood flows only in vein

6.

The smaller blood vessels are called………………..

(a)  

7.

Which blood cells fight diseases?

a)

Defense

b)

Red blood cells

c)

White blood cells

d)

Plasma

8.

Veins carry blood away from the heart.

a)

False

b)

True

9.

What is plasma ?

a)

Solid part of blood

b)

Liquid part of blood

c)

Blood vessels

d)

Heart chamber

10.

Which blood vessel has thinnest walls?

a)

Arteries

b)

Veins

c)

Capillaries

d)

Aorta

11.

Where does gas exchange take place? Yea

a)

Arteries

b)

Veins

c)

Heart

d)

Capillaries

12.

Which blood vessel has thick walls?

a)

Veins

b)

Capillaries

c)

Arteries

d)

Venules

13.

The heart is made of muscle.

a)

True

b)

False

14.

What give red blood cells their red colour?

a)

Plasma

b)

Oxygen

c)

Hemoglobin

d)

Platelets

15.

Which organ pumps blood throughout the body?

a)

Brain

b)

Lungs

c)

Heart

d)

Liver

16.

Which circulation carries blood between the heart and lungs?

a)

Systematic

b)

Double

c)

Pulmonary

d)

Closed

17.

Humans have a double circulatory system?

a)

True

b)

False

18.

The movement of blood through the body is called ………………

(a)  

19.

Which part of the heart pumps blood to the whole body?

a)

Right atrium

b)

Left atrium

c)

Right ventricle

d)

Left ventricle

20.

Which blood vessel connects arteries and veins?

a)

Vein

b)

Arteries

c)

Capillary

d)

Valve

21.

Capillary help in exchange of gases.

a)

True

b)

False

22.

Which component of blood help in clotting?

a)

Plasma

b)

Red blood cells

c)

White blood

d)

Platelets

23.

Which circulation carries blood from the heart to the rest of the body?

a)

Systemic

b)

Pulmonary

c)

Double

d)

Open

24.

The blood vessel that brings blood to the heart is called a ………………

(a)  

25.

Red blood cells carry oxygen..

a)

True

b)

False

26.

Which blood vessel carries blood away from the heart?

a)

Pulmonary artery

b)

Aorta

c)

Vena cava

d)

Capillary

27.

Which is the largest artery in the human body?

a)

Pulmonary artery

b)

Aorta

c)

Vena cava

d)

Capillary

28.

The right side of the heart pumps oxygenated blood.

a)

True

b)

False

29.

Which blood vessel carry deoxygenated blood to the lungs?

a)

Pulmonary vein

b)

Pulmonary artery

c)

Aorta

d)

Capillary

30.

What is plasma?

a)

Solid part of blood

b)

Liquid part of blood

c)

Blood cells

d)

Heart chamber

31.

Blood helps remove waste products from the body.

a)

True

b)

False

32.

Which blood vessel has the thinnest walls?

a)

Artery

b)

Vein

c)

Capillary

d)

Aorta

33.

Which system works closely with the circulatory system to supply oxygen?

a)

Digestive

b)

Nervous

c)

Respiratory

d)

Skeletal

34.

The circulatory system includes heart, blood, and blood vessels.

a)

True

b)

False

35.

Which colour is oxygen- rich blood ?

a)

Blue

b)

Green

c)

Dark red

d)

Bright red

36.

Which part of blood carries oxygen?

a)

White blood cells

b)

Platelets

c)

Red blood cells

d)

Plasma

37.

Pulmonary circulation involves the lungs.

a)

True

b)

False

38.

Which blood vessel has the highest blood pressure?

a)

Veins

b)

Capillaries

c)

Arteries

d)

Venules

39.

Which valve prevents backflow of blood in the heart?

a)

Chamber

b)

Vein

c)

Artery

d)

Valve

40.

Blood transports nutrients to all parts of the body.

a)

True

b)

False