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GCSE (9–1) Biology A (Gateway Science)J247/04 Paper 4 (Higher Tier) best exam revision for 2022
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GCSE (9–1) Biology A (Gateway Science)J247/04 Paper 4 (Higher Tier) best exam revision for 2022
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Oxford Cambridge and RSAH
Friday 26 November 2021 – Morning
GCSE (9–1) Biology A (Gateway Science)
J247/04 Paper 4 (Higher Tier)
Time allowed: 1 hour 45 minutes
You must have:
* 8 3 4 0 2 7 3 5 1 8 *
• a ruler (cm/mm)
You can use:
• a scientific or graphical calculator
• an HB pencil
* J 2 4 7 0 4 *
Please write clearly in black ink. Do not write in the barcodes.
Centre number Candidate number
First name(s)
Last name
INSTRUCTIONS
• Use black ink. You can use an HB pencil, but only for graphs and diagrams.
• Write your answer to each question in the space provided. If you need extra space use
the lined pages at the end of this booklet. The question numbers must be clearly shown.
• Answer all the questions.
• Where appropriate, your answer should be supported with working. Marks might be
given for using a correct method, even if your answer is wrong.
INFORMATION
• The total mark for this paper is 90.
• The marks for each question are shown in brackets [ ].
• Quality of extended response will be assessed in questions marked with an asterisk (*).
• This document has 32 pages.
ADVICE
• Read each question carefully before you start your answer.
© OCR 2021 [601/8589/2] OCR is an exempt Charity
DC (MS/SG) 300831/7 Turn over
, 2
SECTION A
Answer all the questions.
You should spend a maximum of 30 minutes on this section.
Write your answer to each question in the box provided.
1 A student estimated the population of insects at different distances from a factory using capture-
recapture.
They plotted their results on a graph.
1000
800
Population 600
of insects
400
200
0
0 500 1000 1500 2000
Distance from the factory (m)
Which of these statements describes the student’s results?
A Population size = distance from the factory
B Population size ∝ distance from the factory
C Population size > distance from the factory
D Population size ~ distance from the factory
Your answer [1]
© OCR 2021
, 3
2 Which row in the table gives the optimum conditions for decomposition?
Oxygen Temperature (°C) Decomposers
A Present 40 Present
B Absent 10 Absent
C Present 80 Present
D Absent 40 Present
Your answer [1]
3 The diagram shows the carbon cycle.
Gas in the air
X
What is the importance of process X to living organisms?
A It produces food containing carbon molecules.
B It produces fossil fuels for combustion.
C It provides minerals to plants.
D It releases energy and carbon dioxide.
Your answer [1]
© OCR 2021 Turn over
, 4
4 The diagram shows the biomass in different trophic levels of a food chain.
Oak tree 1000 kg Greenfly 10 kg Ladybirds 1 kg
Which processes account for the decrease of biomass along the food chain?
A Egestion, growth and respiration
B Egestion, respiration and excretion
C Photosynthesis, respiration and excretion
D Respiration, growth and excretion
Your answer [1]
5 Which pair of genetic terms have the same meaning?
A Base and nucleotide
B Gene and allele
C Gene and genome
D Variant and allele
Your answer [1]
© OCR 2021
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