Candidate signature
I declare this is my own work.
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
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Freemann. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $9.35. You're not tied to anything after your purchase.
