Friday 7 June 2024 – Afternoon
GCSE (9–1) Biology A (Gateway Science)
J247/04 (Higher Tier)
Time allowed: 1 hour 45 minutes
Turn over
, 2
Section A
You should spend a maximum of 30 minutes on this section.
Write your answer to each question in the box provided.
1 Which row shows correct abiotic and biotic factors?
Abiotic Biotic
A food light intensity
B food predators
C pH of soil predators
D temperature light intensity
Your answer [1]
2 Which process can make new alleles?
A Evolution
B Mutation
C Selective breeding
D Specialisation
Your answer [1]
3 All the living organisms and the place where they live is called …
A A community
B A habitat
C A population
D An ecosystem
Your answer [1]
, 3
4 Which processes in the carbon cycle return carbon to the atmosphere?
A Decomposition and photosynthesis
B Decomposition and respiration
C Photosynthesis and fossilisation
D Respiration and fossilisation
Your answer [1]
5 The diagram shows a labelled plant cell.
A
B
C
D
Which part of the plant cell gives physical protection against disease?
Your answer [1]
Turn over
, 4
6 The graph shows the changes in chromosome number in a cell during meiosis.
8
6
Chromosome
number 4
2
Time
What is the diploid number of chromosomes for this cell?
A 2
B 4
C 6
D 8
Your answer [1]
7 A gene controlling a characteristic has two possible alleles, A and a. A is the dominant allele.
One person is Aa and another person is AA for this gene.
Which statement correctly describes both people?
A They have different genomes but the same genotype.
B They have different phenotypes but the same genotype for this characteristic.
C They have the same genome but different genotypes.
D They have the same phenotype but different genotypes for this characteristic.
Your answer [1]
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