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GCSE
COMBINED SCIENCE: TRILOGY
Foundation Tier
F
Biology Paper 2F
Friday 9 June 2023 Afternoon Time allowed: 1 hour 15 minutes
2023 AQA GCSE COMBINED SCIENCE: TRILOGY 8464/B/2F Biology Paper
2F Question Paper & Mark scheme (Merged) June 2023 [VERIFIED] For Examiner’s Use
Materials
Question Mark
For this paper you must have:
• a ruler 1
• a scientific calculator. 2
3
Instructions
4
• Use black ink or black ball-point pen.
• Pencil should only be used for drawing. 5
• Fill in the boxes at the top of this page. 6
• Answer all questions in the spaces provided. 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
• Do all rough work in this book. Cross through any work you do not want to be
marked.
• In all calculations, show clearly how you work out your answer.
Information
• The maximum mark for this paper is 70.
• The marks for questions are shown in brackets.
• You are expected to use a calculator where appropriate.
• You are reminded of the need for good English and clear presentation in your answers.
*JUN238464B2F01*
, 2
Do not write
outside the
0 1Figure 1 shows a place where peat is being removed from a peat bog. box
Figure 1
0 1 . 1Why is peat removed from peat bogs?
[1 mark]
✓
Tick ( ) one box.
To increase biodiversity
To produce garden compost
To protect rare habitats
*02*
IB/M/Jun23/8464/B/2F
, 3
Do not write
outside the
0 1 .2 Peat can decay. box
Name one type of organism that causes decay.
[1 mark]
0 1 . 3 Complete the sentences. Choose
answers from the box.
[2 marks]
carbon dioxide nitrogen oxygen sulfur dioxide
The organisms that cause decay respire.
The gas used for respiration is .
The gas produced by respiration is .
Question 1 continues on the next page
Turn over ►
*03*
IB/M/Jun23/8464/B/2F
, 4
Do not write
outside the
0 1 . 4 Peat bogs cover a total area of 3 700 000 km2. In box
2020, 46% of peat bogs were frozen.
How can the area of peat bogs that were frozen be calculated?
[1 mark]
✓
Tick ( ) one box.
46
3 700 000 × 100
46
3 700 000 × 100
3 700 000
× 100
46
0 1 . 5The percentage of peat bogs that are frozen decreases each year. Suggest
why the percentage of peat bogs that are frozen is decreasing.
[1 mark]
*04*
IB/M/Jun23/8464/B/2F
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