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The circulatory system

Total questions: 31

Worksheet time: 28mins

Name
Class
Date
1.

1

(a)  

2.

2

(a)  

3.

3

(a)  

4.

4

(a)  

5.

5

(a)  

6.

6

(a)  

7.

7

(a)  

8.

8

(a)  

9.

9

(a)  

10.

10

(a)  

11.

11

(a)  

12.

12

(a)  

13.

13

(a)  

14.

What does the plasma transport

a)

Blood cells, nutrients, waste substances, CO2 and O2

b)

Blood cells, nutrients, waste substances, CO2, O2 and nucleic acids

c)

Blood cells, nutrients, waste substances, CO2, and nucleic acids

d)

Nutrients, waste substances, CO2, and nucleic acids

15.

Scientific name of red blood cells

(a)  

16.

Scientific name of white blood cells

(a)  

17.

Scientific name of platelets

(a)  

18.

Percentage of plasma in blood

(a)  

19.

Percentage of blood cells in blood

(a)  

20.

Percentage of red blood cells in blood

(a)  

21.

What do the red blood cells carry

(a)  

22.

What do the white blood cells protect from (put it separated by coma and space [, ]

(a)  

23.

Composition of plasma

(a)  

24.

Which one contains thicker walls

a)

Veins

b)

Arteries

c)

Capillaries

25.

Which one has the walls of one cell thick

a)

Veins

b)

Arteries

c)

Capillaries

26.

Why are the arteries more muscular than veins

a)

Because they carry much more blood

b)

To protect the blood from diseases and infections

c)

To don't break because of the pressure the heart does

27.

Why do the veins contain valves

a)

To help blood flowing towards the heart

b)

To protect from viruses and infections

c)

To avoid diffussion

d)

To maintain blood pressure

28.

Which one transports blood away from the heart

a)

Veins

b)

Arteries

c)

Capillaries

29.

Which one transports blood towards the heart

a)

Veins

b)

Arteries

c)

Capillaries

30.

Which one is the smallest blood vessel

a)

Veins

b)

Arteries

c)

Capillaries

31.

14

(a)