GCSE Triple Science – Biology(AQA)
Final Review Exam With Answers
Graded A+.
What are eukaryotic cells? - Answer Cells that are more complex and have a nucleus (animal and plant
cells)
What are prokaryotic cells? - Answer Cells that are smaller and simpler, and don't have a nucleus but
still have genetic information (bacteria)
What are eukaryotes? - Answer Organisms made of eukaryotic cells
What is a prokaryote? - Answer A prokaryotic cell (it's a single celled organism)
What is cytoplasm? - Answer A liquid gel in which most of the chemical reactions needed for life take
place. It contains enzymes that control these chemical reactions
In what types of cells is cytoplasm found? - Answer Animal, plant, algae, and bacteria cells
What is the cell membrane? - Answer It holds the cell together and controls the passage of substances
in and out of the cell
In what types of cells is a cell membrane found? - Answer Animal, plant, algae, and bacteria cells
What is the nucleus? - Answer It carries the instructions for making new cells or organisms and controls
all activities of the cell
In what types of cell is a nucleus found? - Answer Animal, plant, and algae cells
,What is the cell wall? - Answer It is made of cellulose in plants and peptidoglycan in bacteria. It
strengthens and supports the cell.
In what types of cell is a cell wall found? - Answer Plant, and bacteria cells
What are chloroplasts? - Answer They are found in the green parts of a plant, and they contain
chlorophyll which allows the cell to create food and light energy
In what types of cell are chloroplasts found? - Answer Plant, and algae cells
What are ribosomes? - Answer They are the site of protein synthesis. All the proteins needed in the cell
are made here. The ribosomes are attached to the RER (rough endoplasmic reticulum)
In what types of cell are ribosomes found? - Answer Animal, and plant cells
What are mitochondria? - Answer They are structures in the cytoplasm. Oxygen is used, and energy is
released during respiration here
In what types of cell are mitochondria found? - Answer Animal, plant, and algae cells
What is a permanent vacuole? - Answer It is a space in the cytoplasm filled with cell sap. It is important
for keeping the cell rigid to support the plant
In what types of cell is a permanent vacuole found? - Answer Plant, and algae cells
What is a plasmid? - Answer A small, circular piece of DNA that carries genes additional to those in the
main genetic material
What two features do bacteria cells NOT have? - Answer Chloroplasts and mitochondria
,How do light microscopes work? - Answer They use light and lenses to form an image of a specimen
and magnify it
What can we see using a microscope? - Answer Individual cells and large sub-cellular structures, like
nuclei
What do electron microscopes use to form an image? - Answer Electrons
Out of electron and light microscopes, which has a higher resolution? - Answer Electron microscopes
What can we see with electron microscopes? - Answer The internal structure of mitochondria and
chloroplasts, ribosomes, and plasmids
What is the formula for magnification? - Answer Magnification is image size divided by real size
How do you convert from micrometres into millimetres? - Answer Divide by 1000
What is a flagellum for? - Answer Locomotion
In what type of cell is a flagellum found? - Answer Bacteria
What are nerve cells specialised to do? - Answer Carry impulses around an organism. They provide a
quick communication system
What are four adaptations of nerve cells? - Answer Lots of dendrites to connect with other cells
Axon that carries nerve impulses from one place to another
Synapses adapted to pass impulses on using transmitter chemicals
Long so they cover more distance
What is differentiation? - Answer The process where a cell changes to become specialised
, What are stem cells? - Answer Undifferentiated cells
What are sperm cells specialised to do? - Answer Get the male DNA to the female DNA by fertilising an
egg
What are three adaptations of sperm cells? - Answer Long tail to help it swim
Lots of mitochondria to provide the energy needed for the sperm cell to move
Digestive enzymes in the head to digest the egg cell membrane
What are muscle cells specialised to do? - Answer Contract and relax to move the bones of the
skeleton
What are two adaptations of muscle cells? - Answer Long so they have space to contract
Contain lots of mitochondria to generate the energy needed for contraction
What are root hair cells specialised to do? - Answer Absorb water and minerals
What is one adaptation of a root hair cell? - Answer Large surface area for absorbing water and mineral
ions from the soil
What are photosynthetic cells specialised to do? - Answer Carry out photosynthesis
What are three adaptations of photosynthetic cells? - Answer Contain chloroplasts, which contain
chlorophyll for photosynthesis
Positioned in continuous layers in the leaves and outer layers of the stem of a plant to help absorb light
Have a large permanent vacuole to keep the cell rigid
What are xylem cells specialised to do? - Answer Carry water and mineral ions from the roots to the
highest leaves and shoots
Final Review Exam With Answers
Graded A+.
What are eukaryotic cells? - Answer Cells that are more complex and have a nucleus (animal and plant
cells)
What are prokaryotic cells? - Answer Cells that are smaller and simpler, and don't have a nucleus but
still have genetic information (bacteria)
What are eukaryotes? - Answer Organisms made of eukaryotic cells
What is a prokaryote? - Answer A prokaryotic cell (it's a single celled organism)
What is cytoplasm? - Answer A liquid gel in which most of the chemical reactions needed for life take
place. It contains enzymes that control these chemical reactions
In what types of cells is cytoplasm found? - Answer Animal, plant, algae, and bacteria cells
What is the cell membrane? - Answer It holds the cell together and controls the passage of substances
in and out of the cell
In what types of cells is a cell membrane found? - Answer Animal, plant, algae, and bacteria cells
What is the nucleus? - Answer It carries the instructions for making new cells or organisms and controls
all activities of the cell
In what types of cell is a nucleus found? - Answer Animal, plant, and algae cells
,What is the cell wall? - Answer It is made of cellulose in plants and peptidoglycan in bacteria. It
strengthens and supports the cell.
In what types of cell is a cell wall found? - Answer Plant, and bacteria cells
What are chloroplasts? - Answer They are found in the green parts of a plant, and they contain
chlorophyll which allows the cell to create food and light energy
In what types of cell are chloroplasts found? - Answer Plant, and algae cells
What are ribosomes? - Answer They are the site of protein synthesis. All the proteins needed in the cell
are made here. The ribosomes are attached to the RER (rough endoplasmic reticulum)
In what types of cell are ribosomes found? - Answer Animal, and plant cells
What are mitochondria? - Answer They are structures in the cytoplasm. Oxygen is used, and energy is
released during respiration here
In what types of cell are mitochondria found? - Answer Animal, plant, and algae cells
What is a permanent vacuole? - Answer It is a space in the cytoplasm filled with cell sap. It is important
for keeping the cell rigid to support the plant
In what types of cell is a permanent vacuole found? - Answer Plant, and algae cells
What is a plasmid? - Answer A small, circular piece of DNA that carries genes additional to those in the
main genetic material
What two features do bacteria cells NOT have? - Answer Chloroplasts and mitochondria
,How do light microscopes work? - Answer They use light and lenses to form an image of a specimen
and magnify it
What can we see using a microscope? - Answer Individual cells and large sub-cellular structures, like
nuclei
What do electron microscopes use to form an image? - Answer Electrons
Out of electron and light microscopes, which has a higher resolution? - Answer Electron microscopes
What can we see with electron microscopes? - Answer The internal structure of mitochondria and
chloroplasts, ribosomes, and plasmids
What is the formula for magnification? - Answer Magnification is image size divided by real size
How do you convert from micrometres into millimetres? - Answer Divide by 1000
What is a flagellum for? - Answer Locomotion
In what type of cell is a flagellum found? - Answer Bacteria
What are nerve cells specialised to do? - Answer Carry impulses around an organism. They provide a
quick communication system
What are four adaptations of nerve cells? - Answer Lots of dendrites to connect with other cells
Axon that carries nerve impulses from one place to another
Synapses adapted to pass impulses on using transmitter chemicals
Long so they cover more distance
What is differentiation? - Answer The process where a cell changes to become specialised
, What are stem cells? - Answer Undifferentiated cells
What are sperm cells specialised to do? - Answer Get the male DNA to the female DNA by fertilising an
egg
What are three adaptations of sperm cells? - Answer Long tail to help it swim
Lots of mitochondria to provide the energy needed for the sperm cell to move
Digestive enzymes in the head to digest the egg cell membrane
What are muscle cells specialised to do? - Answer Contract and relax to move the bones of the
skeleton
What are two adaptations of muscle cells? - Answer Long so they have space to contract
Contain lots of mitochondria to generate the energy needed for contraction
What are root hair cells specialised to do? - Answer Absorb water and minerals
What is one adaptation of a root hair cell? - Answer Large surface area for absorbing water and mineral
ions from the soil
What are photosynthetic cells specialised to do? - Answer Carry out photosynthesis
What are three adaptations of photosynthetic cells? - Answer Contain chloroplasts, which contain
chlorophyll for photosynthesis
Positioned in continuous layers in the leaves and outer layers of the stem of a plant to help absorb light
Have a large permanent vacuole to keep the cell rigid
What are xylem cells specialised to do? - Answer Carry water and mineral ions from the roots to the
highest leaves and shoots
