AQA GCSE Biology - Paper 1 2024/2025
Exam Questions and Corresponding
Answers with Surety of 100% Pass Mark
What does a nucleus do? - 🧠 ANSWER ✔✔It contains genetic material and
controls the activities of the cell
What does cytoplasm do? - 🧠 ANSWER ✔✔It's a gel-like substance where
most of the chemical reactions happen. It contains enzymes that control
these chemical reactions
What does a cell membrane do? - 🧠 ANSWER ✔✔It holds the cell together
and controls what goes in and out
What do mitochondria do? - 🧠 ANSWER ✔✔These are where most of the
reactions for aerobic respiration occur. Respiration transfers energy that
the cell needs to work
What do ribosomes do? - 🧠 ANSWER ✔✔This is where protein synthesis
takes place - where proteins are made in the cell
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STATEMENT. ALL RIGHTS RESERVED
,What do cell walls do? - 🧠 ANSWER ✔✔They are made of cellulose and
they support and strengthen the cell
What does a vacuole do? - 🧠 ANSWER ✔✔It contains cell sap and helps
maintain the shape of the cell
What do chloroplasts do? - 🧠 ANSWER ✔✔This is where photosynthesis
occurs, which makes food for the plant. They contain chlorophyll - a green
pigment - which absorbs light needed for photosynthesis
What do bacterial cells contain? - 🧠 ANSWER ✔✔Cytoplasm, cell
membrane, cell wall, flagella, ribosomes, mitochondria, slime capsule,
plasmids (small rings of DNA) and a single circular strand of DNA that
floats freely in the cytoplasm
What do bacterial cells NOT contain? - 🧠 ANSWER ✔✔A nucleus
What is the equation for magnification? - 🧠 ANSWER ✔✔Image size
divided by actual size
What is differentiation? - 🧠 ANSWER ✔✔The process by which a cell
changes to become specialised for its job
What are undifferentiated cells called? - 🧠 ANSWER ✔✔Stem cells
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STATEMENT. ALL RIGHTS RESERVED
,What are sperm cells specialised for and how are they specialised? - 🧠
ANSWER ✔✔Reproduction - they transport the male DNA to the female
DNA
-It has a flagella and a streamlined head to help it swim towards the egg
-There are lots of mitochondria in the cell to provide the energy needed
-It carries enzymes in its head to help digest through the egg cell
membranes
What are nerve cells specialised for and how are they specialised? - 🧠
ANSWER ✔✔Rapid signalling - they carry electrical signals from one part
of the body to another
-They are long to cover more distance
-They have branched connections at their ends to connect to other nerve
cells and form a network throughout the body
What are muscle cells specialised for and how are they specialised? - 🧠
ANSWER ✔✔Contraction - they need to contract quickly
-They are long so they have space to contract
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STATEMENT. ALL RIGHTS RESERVED
, -They contain lots of mitochondria to generate the energy needed for
contraction
What are root hair cells specialised for and how are they specialised? - 🧠
ANSWER ✔✔Absorbing water and minerals
-They are cells on the surface of plant roots which grow into long hairs that
stick out into the soil
-They have a large surface area for absorbing water and mineral ions from
the soil
What are chromosomes? - 🧠 ANSWER ✔✔Coiled up lengths of DNA
molecules that are found in the nuclei
What do multicellular organisms use mitosis for? - 🧠 ANSWER ✔✔To grow
or replace cells that have been damaged
What are stem cells? - 🧠 ANSWER ✔✔They are undifferentiated cells that
divide to produce lots more undifferentiated cells. They then differentiate
into different types of cell
Where are stem cells found? - 🧠 ANSWER ✔✔In early human embryos or
the bone marrow of adults
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
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STATEMENT. ALL RIGHTS RESERVED
Exam Questions and Corresponding
Answers with Surety of 100% Pass Mark
What does a nucleus do? - 🧠 ANSWER ✔✔It contains genetic material and
controls the activities of the cell
What does cytoplasm do? - 🧠 ANSWER ✔✔It's a gel-like substance where
most of the chemical reactions happen. It contains enzymes that control
these chemical reactions
What does a cell membrane do? - 🧠 ANSWER ✔✔It holds the cell together
and controls what goes in and out
What do mitochondria do? - 🧠 ANSWER ✔✔These are where most of the
reactions for aerobic respiration occur. Respiration transfers energy that
the cell needs to work
What do ribosomes do? - 🧠 ANSWER ✔✔This is where protein synthesis
takes place - where proteins are made in the cell
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
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STATEMENT. ALL RIGHTS RESERVED
,What do cell walls do? - 🧠 ANSWER ✔✔They are made of cellulose and
they support and strengthen the cell
What does a vacuole do? - 🧠 ANSWER ✔✔It contains cell sap and helps
maintain the shape of the cell
What do chloroplasts do? - 🧠 ANSWER ✔✔This is where photosynthesis
occurs, which makes food for the plant. They contain chlorophyll - a green
pigment - which absorbs light needed for photosynthesis
What do bacterial cells contain? - 🧠 ANSWER ✔✔Cytoplasm, cell
membrane, cell wall, flagella, ribosomes, mitochondria, slime capsule,
plasmids (small rings of DNA) and a single circular strand of DNA that
floats freely in the cytoplasm
What do bacterial cells NOT contain? - 🧠 ANSWER ✔✔A nucleus
What is the equation for magnification? - 🧠 ANSWER ✔✔Image size
divided by actual size
What is differentiation? - 🧠 ANSWER ✔✔The process by which a cell
changes to become specialised for its job
What are undifferentiated cells called? - 🧠 ANSWER ✔✔Stem cells
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
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STATEMENT. ALL RIGHTS RESERVED
,What are sperm cells specialised for and how are they specialised? - 🧠
ANSWER ✔✔Reproduction - they transport the male DNA to the female
DNA
-It has a flagella and a streamlined head to help it swim towards the egg
-There are lots of mitochondria in the cell to provide the energy needed
-It carries enzymes in its head to help digest through the egg cell
membranes
What are nerve cells specialised for and how are they specialised? - 🧠
ANSWER ✔✔Rapid signalling - they carry electrical signals from one part
of the body to another
-They are long to cover more distance
-They have branched connections at their ends to connect to other nerve
cells and form a network throughout the body
What are muscle cells specialised for and how are they specialised? - 🧠
ANSWER ✔✔Contraction - they need to contract quickly
-They are long so they have space to contract
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
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STATEMENT. ALL RIGHTS RESERVED
, -They contain lots of mitochondria to generate the energy needed for
contraction
What are root hair cells specialised for and how are they specialised? - 🧠
ANSWER ✔✔Absorbing water and minerals
-They are cells on the surface of plant roots which grow into long hairs that
stick out into the soil
-They have a large surface area for absorbing water and mineral ions from
the soil
What are chromosomes? - 🧠 ANSWER ✔✔Coiled up lengths of DNA
molecules that are found in the nuclei
What do multicellular organisms use mitosis for? - 🧠 ANSWER ✔✔To grow
or replace cells that have been damaged
What are stem cells? - 🧠 ANSWER ✔✔They are undifferentiated cells that
divide to produce lots more undifferentiated cells. They then differentiate
into different types of cell
Where are stem cells found? - 🧠 ANSWER ✔✔In early human embryos or
the bone marrow of adults
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
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STATEMENT. ALL RIGHTS RESERVED
