1
1 Which matches the component of blood to its function?
component function
A plasma carries glycogen
B platelets carry hormones
C red blood cells carry oxygen
D white blood cells carry nutrients
[1]
[Total: 1]
2
2 When the heart beats, it pumps blood round the body.
The diagram below shows the components of blood as seen through a light microscope.
Name the blood components labelled F, G and H.
State one function for each component.
Write your answers in the Table below.
name of blood
label one function of the blood component
component
[6]
[Total: 6]
3
3 Which substance is transported by haemoglobin?
A nitrogen
B oxygen
C urea
D water
[1]
[Total: 1]
4 Blood is made up of four major components. Two of these components are plasma and red blood
cells.
Name the two other major components of blood and state their function.
name.........................................................................................................................................
function.....................................................................................................................................
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name.........................................................................................................................................
function.....................................................................................................................................
.................................................................................................................................................. [4]
[Total: 4]
4
5 The photograph below shows some red blood cells, taken through a microscope.
Explain how the features of a red blood cell given in the table below are important to its function.
Write your answers in the table below.
feature of red blood cell explanation of importance
contains haemoglobin
no nucleus present
very tiny cell
[3]
[Total: 3]
5
6 The table below compares the amounts of four different substances in blood plasma and urine.
3
substance quantity / percentage per 100 cm of fluid
blood plasma urine
water 91.50 95.50
urea 0.03 2.10
glucose 0.10 0.00
salts 0.41 0.61
Use the information in the table to describe how blood plasma differs from urine.
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.................................................................................................................................................. [3]
[Total: 3]
7 State the function of red blood cells.
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.................................................................................................................................................. [1]
[Total: 1]
8 Human red blood cells do not contain a nucleus.
State an advantage of this.
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.................................................................................................................................................. [1]
[Total: 1]
6
9 State the name of the liquid component of blood.
.................................................................................................................................................. [1]
[Total: 1]
10 State three substances that are transported in the liquid component of blood.
1 ...............................................................................................................................................
2 ...............................................................................................................................................
3 ............................................................................................................................................... [3]
[Total: 3]
11 The diagram below shows a section through a blood vessel.
Red blood cells are different to white blood cells.
State three ways in which a red blood cell is different to a white blood cell.
1 ...............................................................................................................................................
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2 ...............................................................................................................................................
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3 ...............................................................................................................................................
.................................................................................................................................................. [3]
[Total: 3]
7
12 Some components of blood defend the body against disease.
The table below contains the names of three of the components of blood.
It also states three defence mechanisms.
Complete the table by placing a tick (✓) in the box that matches each defence mechanism to the
correct component of blood.
component of blood
defence mechanism
platelets red blood cells white blood cells
antibody production
blood clotting
phagocytosis
[3]
[Total: 3]
13 State two roles of blood clotting.
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.................................................................................................................................................. [2]
[Total: 2]
14 State the name of a component of blood that is responsible for clotting.
.................................................................................................................................................. [1]
[Total: 1]
15 In the lymphatic system, there are structures that contain large numbers of lymphocytes.
State the role of lymphocytes.
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.................................................................................................................................................. [2]
8
[Total: 2]
16 The photomicrograph is of human blood.
Use the information in the photomicrograph to complete the table by stating one function for each
cell.
identifying letter in
function
photomicrograph
[2]
[Total: 2]
9
17 The photomicrograph shows human blood.
Describe the differences in appearance and the roles of the three cells labelled in the
photomicrograph.
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.................................................................................................................................................. [6]
[Total: 6]
10
18 Red blood cells are one component of blood.
State the name of two other components of blood.
1 ...............................................................................................................................................
2 ............................................................................................................................................... [2]
[Total: 2]
19 The photomicrograph shows a capillary with red blood cells passing through it.
State the function of the red blood cells shown in the photomicrograph.
..................................................................................................................................................
.................................................................................................................................................. [1]
[Total: 1]
11
20 The table shows some information about the functions of the components of blood.
Complete the table.
function type of cell
production of antibodies
phagocyte
promotes blood clotting
transports oxygen
[4]
[Total: 4]
21 White blood cells are one of the components of blood.
State two functions of white blood cells.
1 ...............................................................................................................................................
2 ............................................................................................................................................... [2]
[Total: 2]
12
22 The photomicrograph is of human blood.
State the name of the component of blood that transports the cells shown in the photomicrograph.
.................................................................................................................................................. [1]
[Total: 1]
