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AQA A LEVEL BIOLOGY 7402/1 paper 1 Question Paper JUN22 £11.08
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Exam (elaborations)

AQA A LEVEL BIOLOGY 7402/1 paper 1 Question Paper JUN22

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AQA A LEVEL BIOLOGY 7402/1 paper 1 Question Paper JUN22

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  • September 4, 2023
  • September 4, 2023
  • 36
  • 2023/2024
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oliver001
Please write clearly in block capitals.
A-level
Centre Candidate
BIOLOGY
number number


Paper 1
Surname

Forename(s)

Candidate re Time allowed: 2 hours
signatu
Materials
For this paper you must have: For Examiner’s Use
 a ruler with millimetre measurements
Questio Mark
 a scientific calculator. n
1
Instructions
2
 Use black ink or black ball-point pen.
 Fill in the boxes at the top of this page. 3
 Answer all questions. 4
 You must answer the questions in the spaces provided. Do 5
not write outside the box around each page or on blank
6
pages.
 If you need extra space for your answer(s), use the lined pages at 7
the end of this book. Write the question number against your 8
answer(s). 9
 Show all your working.
 Do all rough work in this book. Cross through any work you do TOTAL
not want to be marked.

Information
 The marks for the questions are shown in brackets.
 The maximum mark for this paper is 91.




*jun227402101*
IB/M/Jun22/ 7402/1
E12

, 2
Do not
write
There are no questions printed on this page box




DO NOT WRITE ON THIS PAGE
ANSWER IN THE SPACES PROVIDED




*02
IB/M/
*

, 3
Do not
Answer all questions in the spaces write
box
provided.


0 1 .1 Describe the structure and function of the nucleus.
[4 marks]




Question 1 continues on the next page




Turn over ►



*03
IB/M/
*

, 4
Do not
write
box
0 1 .2 Name the main polymer that forms the following cell walls.
[1 mark]

Plant cell wall

Fungal cell wall

Scientists investigated the effect of the number of fungal species in
soil on the diversity of plant species.

Table 1 shows their raw data for soil containing 14 fungal species.

Table 1

Plant species Total shoot biomass / g m–2
Poa compressa 2
Achillea millefolium 4
Aster cordifolius 5
Aster novae-angliae 7
Chrysanthemum leucanthemum 15
Daucus carota 36
Fragaria virginiana 51


0 1 .3 Suggest one reason the scientists used biomass instead of the number of
individuals of each plant species when collecting data to measure
diversity.
[1 mark]




*04
IB/M/
*

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