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AQA GCSE Biology Exam Questions with 100%
Correct Answers | Updated &Verified | | 100%
Score
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
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What do ribosomes do? - ....ANSWER ....✔✔ This is
where protein synthesis takes place - where proteins are
made in the cell
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
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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
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 -
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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
-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
AQA GCSE Biology Exam Questions with 100%
Correct Answers | Updated &Verified | | 100%
Score
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
,2|Page
What do ribosomes do? - ....ANSWER ....✔✔ This is
where protein synthesis takes place - where proteins are
made in the cell
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
,3|Page
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
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 -
, 4|Page
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
-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
