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Cell Structure
Question Paper
Course Edexcel IGCSE Biology
Section 2. Structure & Function in Living Organisms
Topic Cell Structure
Difficulty Easy
Time Allowed 50
Score /39
Percentage /100
Page 1 of 11
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Question 1a
The diagram below shows an image of a plant cell.
Name structures P, Q and R.
[3 marks]
Question 1b
(i) Name one structure that is visible in the diagram that you did not identify in your answer to part (a).
(1)
(ii) State the function of the structure named in part (i)
(1)
[2 marks]
Page 2 of 11
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Question 1c
Which of the following structures is not found in a prokaryotic cell?
☐ A A cell membrane
☐ B Chloroplasts
☐ C Plasmids
☐ D Circular DNA
[1 mark]
Question 2a
The diagram below shows a plant cell drawn to scale.
Calculate how many times longer the cell length is than the chloroplast length.
[2 marks]
Page 3 of 11
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Question 2b
State two ways in which an animal cell would be different to the cell shown in part (a).
[2 marks]
Question 2c
Separate: Biology Only
The diagram below shows a representation of a specialised plant cell.
Name the structures labelled X, Y and Z.
[3 marks]
Page 4 of 11
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Question 2d
Separate: Biology Only
Explain how the cell shown in part (c) is specialised to carry out its function.
[2 marks]
Page 5 of 11
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Question 3a
Separate: Biology Only
The image below shows contains information about several types of specialised cell.
(i) Name the types of specialised cell represented by cells Q, R and S.
(3)
(ii) Draw lines between the images and the statements to match each cell with its function.
(1)
[4 marks]
Page 6 of 11
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Question 3b
Separate: Biology Only
Another example of a specialised cell is a red blood cell. One special feature of red blood cells is the absence of a
nucleus.
Explain one other special feature of a red blood cell.
[2 marks]
Question 3c
Separate: Biology Only
(i) Name the process by which cells become specialised.
(1)
(ii) The process named in part (i) is controlled by the DNA.
Describe how the DNA controls the process named in part (i).
(1)
[2 marks]
Question 4a
Separate: Biology Only
State the meaning of the term stem cell.
[2 marks]
Page 7 of 11
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Question 4b
Separate: Biology Only
Name two sources of stem cells.
[2 marks]
Question 4c
Separate: Biology Only
Describe how stem cells can be used in medicine. Include an example in your answer.
[3 marks]
Page 8 of 11
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Question 5a
The image below shows a red blood cell viewed under a microscope using a magnification of x6000
Use the formula provided to calculate the actual diameter of the red blood cell. Give your answer in mm.
diameter shown in the image in mm
Actual diameter of cell in mm =
magnification
[2 marks]
Page 9 of 11
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Question 5b
Separate: Biology Only
Red blood cells such as that shown in part (a) do not have a nucleus.
(i) Describe the role of the nucleus in cells where it is present.
(1)
(ii) Explain why it is useful for the red blood cell not to have a nucleus.
(2)
[3 marks]
Page 10 of 11
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Question 5c
Separate: Biology Only
Red blood cells are an example of a specialised animal cell. An example of a specialised plant cell is a palisade mesophyll
cell, shown in the diagram below.
Explain how a palisade mesophyll cell is specialised to carry out its function.
[2 marks]
Question 5d
Separate: Biology Only
Other than the cell types named in parts (a)-(c), name two other examples of specialised cells.
[2 marks]
Page 11 of 11
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