GCSE Biology Paper 1 Exam ||
Questions And Answers| Latest Exam
2026-2027 || Graded A+ ||100%
Guaranteed Pass
What is the function of the nucleus? -ANSWER Contains DNA to control the cell
What is the function of the cell membrane? -ANSWER Controls entry and exit of
substances
What is the function of the cell wall? -ANSWER Provides structure and support
What is the function of mitochondria? -ANSWER Carry out respiration to release energy
What is the function of ribosomes? -ANSWER Protein synthesis
What is the function of chloroplasts? -ANSWER Carry out photosynthesis
What is the function of a vacuole? -ANSWER Contains cell sap
Define a prokaryote -ANSWER A cell that does not have a nucleus
Define a eukaryote -ANSWER A cell that has DNA in a nucleus
Name two cell structures that are in a eukaryote but not in a prokaryote -ANSWER
Nucleus, mitochondria, chloroplasts
What is a plasmid? -ANSWER A small loop of DNA in bacteria
What is a plant cell wall made from? -ANSWER Cellulose
How is DNA stored in a bacterial cell? -ANSWER As a single, free-floating loop; also on
plasmids
What is differentiation? -ANSWER The process by which cells become specialised
What is the equation for magnification? -ANSWER Magnification = Image Size ÷ Actual
Size
A photograph of a cell is 15mm long. It has a magnification of 1100x. What is the actual
size? -ANSWER 0.0136mm, or 13.6µm
, A cell is 12µm wide. It is magnified by 450 times. How big is the image? -ANSWER
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? -ANSWER 6000 times
Convert 38500µm into mm -ANSWER 38.5mm
How many µm are in 1mm? -ANSWER 1000
Write 17400m in standard form -ANSWER 1.74 x 10^4 m
Write 0.0034 in standard form -ANSWER 3.4 x 10^-3
How is a sperm cell adapted for its function? -ANSWER It has a tail to swim to the egg
How is a nerve cell adapted for its function? -ANSWER It has a long axon to conduct
impulses over long distances
How is a muscle cell adapted for its function? -ANSWER It can contract to cause
movement
How is a root hair cell adapted for its function? -ANSWER It has a large surface area to
increase osmosis of water
How is a xylem cell adapted for its function? -ANSWER It has hollow ends to transport
water
How is a phloem cell adapted for its function? -ANSWER It has sieve tubes to transport
sugars
What is a stem cell? -ANSWER An undifferentiated cell that can differentiate to become
any type of specialised cell
Where are stem cells most commonly found in animals? -ANSWER In embryos and in
bone marrow
What is meristem tissue? -ANSWER Plant tissue containing stem cells
When are plant cells able to differentiate? -ANSWER Throughout the whole life of the
plant
When do most animal cells differentiate? -ANSWER At an early stage of development (as
an embryo)
Questions And Answers| Latest Exam
2026-2027 || Graded A+ ||100%
Guaranteed Pass
What is the function of the nucleus? -ANSWER Contains DNA to control the cell
What is the function of the cell membrane? -ANSWER Controls entry and exit of
substances
What is the function of the cell wall? -ANSWER Provides structure and support
What is the function of mitochondria? -ANSWER Carry out respiration to release energy
What is the function of ribosomes? -ANSWER Protein synthesis
What is the function of chloroplasts? -ANSWER Carry out photosynthesis
What is the function of a vacuole? -ANSWER Contains cell sap
Define a prokaryote -ANSWER A cell that does not have a nucleus
Define a eukaryote -ANSWER A cell that has DNA in a nucleus
Name two cell structures that are in a eukaryote but not in a prokaryote -ANSWER
Nucleus, mitochondria, chloroplasts
What is a plasmid? -ANSWER A small loop of DNA in bacteria
What is a plant cell wall made from? -ANSWER Cellulose
How is DNA stored in a bacterial cell? -ANSWER As a single, free-floating loop; also on
plasmids
What is differentiation? -ANSWER The process by which cells become specialised
What is the equation for magnification? -ANSWER Magnification = Image Size ÷ Actual
Size
A photograph of a cell is 15mm long. It has a magnification of 1100x. What is the actual
size? -ANSWER 0.0136mm, or 13.6µm
, A cell is 12µm wide. It is magnified by 450 times. How big is the image? -ANSWER
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? -ANSWER 6000 times
Convert 38500µm into mm -ANSWER 38.5mm
How many µm are in 1mm? -ANSWER 1000
Write 17400m in standard form -ANSWER 1.74 x 10^4 m
Write 0.0034 in standard form -ANSWER 3.4 x 10^-3
How is a sperm cell adapted for its function? -ANSWER It has a tail to swim to the egg
How is a nerve cell adapted for its function? -ANSWER It has a long axon to conduct
impulses over long distances
How is a muscle cell adapted for its function? -ANSWER It can contract to cause
movement
How is a root hair cell adapted for its function? -ANSWER It has a large surface area to
increase osmosis of water
How is a xylem cell adapted for its function? -ANSWER It has hollow ends to transport
water
How is a phloem cell adapted for its function? -ANSWER It has sieve tubes to transport
sugars
What is a stem cell? -ANSWER An undifferentiated cell that can differentiate to become
any type of specialised cell
Where are stem cells most commonly found in animals? -ANSWER In embryos and in
bone marrow
What is meristem tissue? -ANSWER Plant tissue containing stem cells
When are plant cells able to differentiate? -ANSWER Throughout the whole life of the
plant
When do most animal cells differentiate? -ANSWER At an early stage of development (as
an embryo)
