AQA-7402-3-QP-BIOLOGY QUESTION PAPER 3-A LEVEL-19Jun24.
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Module
BIOLOGY
Institution
BIOLOGY
AQA-7402-3-QP-BIOLOGY QUESTION PAPER 3-A LEVEL-19Jun24.
A-level
BIOLOGY
Paper 3
0 1 . 1 In the following passage, each numbered space can be filled with a biological term.
Each type of cell has specific molecules on its (1) that identify it. An
antibody is a (2) with two (3) binding sites. A...
Candidate signature
I declare this is my own work.
T
A-level
ES
BIOLOGY
Paper 3
B
Wednesday 19 June 2024 Morning Time allowed: 2 hours
TH
Materials
For Examiner’s Use
For this paper you must have:
• a ruler with millimetre measurements Question Mark
• a scientific calculator.
1
Instructions 2
•
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Use black ink or black ball-point pen. 3
• Fill in the boxes at the top of this page. 4
• Answer all questions in Section A.
5
• Answer one question from Section B.
• You must answer the questions in the spaces provided. Do not write 6
A
outside the box around each page or on blank pages. 7
• If you need extra space for your answer(s), use the lined pages at the end of
this book. Write the question number against your answer(s). TOTAL
• Show all your working.
• Do all rough work in this book. Cross through any work you do not want
to be marked.
Information
• The marks for the questions are shown in brackets.
• The maximum mark for this paper is 78.
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Do not write
outside the
Section A box
Answer all questions in this section.
You are advised to spend no more than 1 hour and 15 minutes on this section.
0 1 . 1 In the following passage, each numbered space can be filled with a biological term.
Each type of cell has specific molecules on its (1) that identify it. An
antibody is a (2) with two (3) binding sites. Antibodies
are made and released by (4) cells.
T
Vaccines can provide protection for individuals and populations against disease. The
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response to a vaccine is an example of (5) immunity.
(6) immunity occurs when a large proportion of a population becomes
immune to a disease.
B
Write the correct biological term beside each number below that matches the space in
the passage.
[3 marks]
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1
2
3
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4
5
6
A
0 1 . 2 There is currently no effective vaccine available for HIV.
Suggest one reason why.
[1 mark]
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3
Do not write
outside the
0 1 . 3 box
Table 1 shows the action of two antibiotics.
Table 1
Antibiotic Action of antibiotic
Ciprofloxacin Causes double-stranded DNA to break apart
Penicillin Prevents formation of crosslinks between murein chains
Using the information in Table 1, explain why each antibiotic is not effective against
HIV.
[2 marks]
Ciprofloxacin
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Penicillin
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B
6
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Turn over for the next question
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A
Turn over ►
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4
Do not write
outside the
0 2 box
A student investigated the effect of temperature on the rate of aerobic respiration in
woodlice.
Figure 1 shows the apparatus they used.
Figure 1
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ES
B
TH
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The student altered the temperature of the water bath and measured how far the drop
of coloured liquid moved every minute for 5 minutes.
A
0 2 . 1 Other than those stated, suggest two variables the student should have kept constant
in this investigation.
[1 mark]
1
2
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