5 Cell recognition and the
AQA Biology immune system
Exam-style questions
1 Figure 1 shows a phagocyte attracted to a bacterium.
Figure 1
Describe how the phagocyte destroys the bacterium.
(5 marks)
2 A child was given two vaccinations consisting of antigens from the virus which causes measles.
The graph shows the concentration of antibodies resulting from these vaccinations.
© Oxford University Press 2015 www.oxfordsecondary.co.uk/acknowledgements
This resource sheet may have been changed from the original 1
, 5 Cell recognition and the
AQA Biology immune system
Exam-style questions
a Describe what a measles antigen is.
(2 marks)
b Describe and explain the difference in the child’s response to the two
vaccinations shown in the graph.
(3 marks)
c Measles and influenza are both caused by viruses. Use your knowledge on
antigens and antibodies to suggest why someone who has not been vaccinated
may have influenza several times, but usually has measles only once.
(4 marks)
3 a Describe how B-lymphocytes respond when they are stimulated by antigens.
(4 marks)
a The table gives information about some components of a red blood cell.
Component Glycoprotein Phospholipid Haemoglobin
on outer surface within plasma in cytoplasm
Location in the
of plasma membrane
cell
membrane
© Oxford University Press 2015 www.oxfordsecondary.co.uk/acknowledgements
This resource sheet may have been changed from the original 2
AQA Biology immune system
Exam-style questions
1 Figure 1 shows a phagocyte attracted to a bacterium.
Figure 1
Describe how the phagocyte destroys the bacterium.
(5 marks)
2 A child was given two vaccinations consisting of antigens from the virus which causes measles.
The graph shows the concentration of antibodies resulting from these vaccinations.
© Oxford University Press 2015 www.oxfordsecondary.co.uk/acknowledgements
This resource sheet may have been changed from the original 1
, 5 Cell recognition and the
AQA Biology immune system
Exam-style questions
a Describe what a measles antigen is.
(2 marks)
b Describe and explain the difference in the child’s response to the two
vaccinations shown in the graph.
(3 marks)
c Measles and influenza are both caused by viruses. Use your knowledge on
antigens and antibodies to suggest why someone who has not been vaccinated
may have influenza several times, but usually has measles only once.
(4 marks)
3 a Describe how B-lymphocytes respond when they are stimulated by antigens.
(4 marks)
a The table gives information about some components of a red blood cell.
Component Glycoprotein Phospholipid Haemoglobin
on outer surface within plasma in cytoplasm
Location in the
of plasma membrane
cell
membrane
© Oxford University Press 2015 www.oxfordsecondary.co.uk/acknowledgements
This resource sheet may have been changed from the original 2
