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AQA GCSE Combined Science Biology -
Paper 1 Questions and Correct Answers/
Latest Update / Already Graded
What is the function of the nucleus?
Ans: Contains DNA to control the cell
What is the function of the cell membrane?
Ans: Controls entry and exit of substances
What is the function of the cell wall?
Ans: Provides structure and support
What is the function of mitochondria?
Ans: Carry out respiration to release energy
What is the function of ribosomes?
Ans: Protein synthesis
What is the function of chloroplasts?
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Ans: Carry out photosynthesis
What is the function of a vacuole?
Ans: Contains cell sap
Define a prokaryote
Ans: A cell that does not have a nucleus
Define a eukaryote
Ans: A cell that has DNA in a nucleus
Name two cell structures that are in a eukaryote but not in a
prokaryote
Ans: Nucleus, mitochondria, chloroplasts
What is a plasmid?
Ans: A small loop of DNA in bacteria
What is a plant cell wall made from?
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Ans: Cellulose
How is DNA stored in a bacterial cell?
Ans: As a single, free-floating loop; also on plasmids
What is differentiation?
Ans: The process by which cells become specialised
What is the equation for magnification?
Ans: Magnification = Image Size ÷ Actual Size
A photograph of a cell is 15mm long. It has a magnification of 1100x.
What is the actual size?
Ans: 0.0136mm, or 13.6µm
A cell is 12µm wide. It is magnified by 450 times. How big is the image?
Ans: 5400µm, or 5.4mm
If the image of a virus is 1.2mm, and its actual size is 0.2µm, how much
has it been magnified by?
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Ans: 6000 times
Convert 38500µm into mm
Ans: 38.5mm
How many µm are in 1mm?
Ans: 1000
Write 17400m in standard form
Ans: 1.74 x 10^4 m
Write 0.0034 in standard form
Ans: 3.4 x 10^-3
How is a sperm cell adapted for its function?
Ans: It has a tail to swim to the egg
How is a nerve cell adapted for its function?
Ans: It has a long axon to conduct impulses over long d istances
All rights reserved © 2025/ 2026 |
AQA GCSE Combined Science Biology -
Paper 1 Questions and Correct Answers/
Latest Update / Already Graded
What is the function of the nucleus?
Ans: Contains DNA to control the cell
What is the function of the cell membrane?
Ans: Controls entry and exit of substances
What is the function of the cell wall?
Ans: Provides structure and support
What is the function of mitochondria?
Ans: Carry out respiration to release energy
What is the function of ribosomes?
Ans: Protein synthesis
What is the function of chloroplasts?
All rights reserved © 2025/ 2026 |
, Page |2
Ans: Carry out photosynthesis
What is the function of a vacuole?
Ans: Contains cell sap
Define a prokaryote
Ans: A cell that does not have a nucleus
Define a eukaryote
Ans: A cell that has DNA in a nucleus
Name two cell structures that are in a eukaryote but not in a
prokaryote
Ans: Nucleus, mitochondria, chloroplasts
What is a plasmid?
Ans: A small loop of DNA in bacteria
What is a plant cell wall made from?
All rights reserved © 2025/ 2026 |
, Page |3
Ans: Cellulose
How is DNA stored in a bacterial cell?
Ans: As a single, free-floating loop; also on plasmids
What is differentiation?
Ans: The process by which cells become specialised
What is the equation for magnification?
Ans: Magnification = Image Size ÷ Actual Size
A photograph of a cell is 15mm long. It has a magnification of 1100x.
What is the actual size?
Ans: 0.0136mm, or 13.6µm
A cell is 12µm wide. It is magnified by 450 times. How big is the image?
Ans: 5400µm, or 5.4mm
If the image of a virus is 1.2mm, and its actual size is 0.2µm, how much
has it been magnified by?
All rights reserved © 2025/ 2026 |
, Page |4
Ans: 6000 times
Convert 38500µm into mm
Ans: 38.5mm
How many µm are in 1mm?
Ans: 1000
Write 17400m in standard form
Ans: 1.74 x 10^4 m
Write 0.0034 in standard form
Ans: 3.4 x 10^-3
How is a sperm cell adapted for its function?
Ans: It has a tail to swim to the egg
How is a nerve cell adapted for its function?
Ans: It has a long axon to conduct impulses over long d istances
All rights reserved © 2025/ 2026 |
