Biology AQA 2022 | Paper 1 Question
and Answers Quizlet
What is an Eukaryotic cell? - ANSWER A eukaryotic cell is an animal or a plant cell.
Their DNA is enclosed in a nucleus.
What is the size of an Eukaryotic cell? - ANSWER They are 10-100 micrometres in size.
What is an organism referred to as an eukaryote made up of? - ANSWER It is made up
of eukaryotic cells.
What is a prokaryotic cell? - ANSWER In prokaryotic cells, the genetic material (DNA) is
not enclosed in a nucleus.
What is the difference in size between Eukaryotic and Prokaryotic cells? - ANSWER
Prokaryotic cells are much smaller than Eukaryotic cells.
What type of DNA may bacteria cells have? - ANSWER They have rings of DNA which
are called Plasmids.
What do Prokaryotic cells not have? - ANSWER "Prokaryotic cells don't have a nucleus,
mitochondria or chloroplast."
What is the function of the nucleus? - ANSWER It contains genetic material (DNA) and
controls what happens in the cell.
What is the function of the mitochondria? - ANSWER The mitochondria is where aerobic
respiration takes place resulting in energy being released.
What is the function of the ribosomes? - ANSWER The ribosomes are where protein
synthesis occurs.
What is the function of the cytoplasm? - ANSWER It is where chemical reactions take
place.
What is the function of the cell membrane? - ANSWER It controls the movement of
substances in and out of the cell.
What is the magnification equation? - ANSWER
, How do you convert from millimetres to micrometres? - ANSWER You multiply by 1000
(Example: What is 1mm in μm?) (Answer: It is 1000 μm)
Where is DNA stored in prokaryotic cells? - ANSWER It is stored in the cytoplasm.
What is found in an animal cell? - ANSWER You can find: - Ribosomes - Nucleus -
Mitochondria - Cell Membrane - Cytoplasm
What does the Plant cell & Animal cell have in common? - ANSWER They both have a:
- Nucleus - Cytoplasm - Cell Membrane - Mitochondria - Ribosomes
"What do Plant cells have in their cell that Animal cells don't have?" - ANSWER Plant
cells have: - Chloroplasts (Makes chlorophyll that gives the green pigment and is where
photosynthesis occurs) - Cell Wall (Made from cellulose. This strengthens the cell) -
Large Permanent Vacuole (Filled with cell fuild called cell sap. The vacuole helps give
the plant its shape)
What are most animal cells? - ANSWER Most animal cells are adaptised. This means
that they have certain adaptations that help carry out their particular functions. When
the cells become specialised, scientists refer to it as differentiation.
What is the purpose of a sperm cell? - ANSWER "The sperm cell's job is to join with an
ovum (egg cell). This process is called fertilisation."
What happens during fertilistation? - ANSWER The genetic information of the ovum
(egg cell) and sperm cell combine.
How are sperm cells adapted to their function? - ANSWER - They only contain half the
genetic information of a normal adult cell. - Long tail, allows them to swim to the ovum
(egg cell). They are also streamlined which makes this much easier. Flagella - Packed
full of mitochondria which allows them to get energy to swim. - Contain enzymes which
allow them to digest their way through the outer layer of the ovum (egg cell).
What is the function of a nerve cell? - ANSWER The job of a nerve cell is to send
electrical impulses around the body.
How is the nerve cell adapted to its function? - ANSWER - Axon carries the electrical
impulses from one part of the body to another. - Axon is covered with Myelin which
speeds up the transmission of nerve impulses. - The end of the axon has synapses.
The synapses are junctions which allow the impulse to pass from one nerve cell to
another. - Dendrites increase the surface area so other nerve cells can connect more
easily.
What is the key feature of a muscle cell? - ANSWER They can contract meaning that
they can get shorter.
and Answers Quizlet
What is an Eukaryotic cell? - ANSWER A eukaryotic cell is an animal or a plant cell.
Their DNA is enclosed in a nucleus.
What is the size of an Eukaryotic cell? - ANSWER They are 10-100 micrometres in size.
What is an organism referred to as an eukaryote made up of? - ANSWER It is made up
of eukaryotic cells.
What is a prokaryotic cell? - ANSWER In prokaryotic cells, the genetic material (DNA) is
not enclosed in a nucleus.
What is the difference in size between Eukaryotic and Prokaryotic cells? - ANSWER
Prokaryotic cells are much smaller than Eukaryotic cells.
What type of DNA may bacteria cells have? - ANSWER They have rings of DNA which
are called Plasmids.
What do Prokaryotic cells not have? - ANSWER "Prokaryotic cells don't have a nucleus,
mitochondria or chloroplast."
What is the function of the nucleus? - ANSWER It contains genetic material (DNA) and
controls what happens in the cell.
What is the function of the mitochondria? - ANSWER The mitochondria is where aerobic
respiration takes place resulting in energy being released.
What is the function of the ribosomes? - ANSWER The ribosomes are where protein
synthesis occurs.
What is the function of the cytoplasm? - ANSWER It is where chemical reactions take
place.
What is the function of the cell membrane? - ANSWER It controls the movement of
substances in and out of the cell.
What is the magnification equation? - ANSWER
, How do you convert from millimetres to micrometres? - ANSWER You multiply by 1000
(Example: What is 1mm in μm?) (Answer: It is 1000 μm)
Where is DNA stored in prokaryotic cells? - ANSWER It is stored in the cytoplasm.
What is found in an animal cell? - ANSWER You can find: - Ribosomes - Nucleus -
Mitochondria - Cell Membrane - Cytoplasm
What does the Plant cell & Animal cell have in common? - ANSWER They both have a:
- Nucleus - Cytoplasm - Cell Membrane - Mitochondria - Ribosomes
"What do Plant cells have in their cell that Animal cells don't have?" - ANSWER Plant
cells have: - Chloroplasts (Makes chlorophyll that gives the green pigment and is where
photosynthesis occurs) - Cell Wall (Made from cellulose. This strengthens the cell) -
Large Permanent Vacuole (Filled with cell fuild called cell sap. The vacuole helps give
the plant its shape)
What are most animal cells? - ANSWER Most animal cells are adaptised. This means
that they have certain adaptations that help carry out their particular functions. When
the cells become specialised, scientists refer to it as differentiation.
What is the purpose of a sperm cell? - ANSWER "The sperm cell's job is to join with an
ovum (egg cell). This process is called fertilisation."
What happens during fertilistation? - ANSWER The genetic information of the ovum
(egg cell) and sperm cell combine.
How are sperm cells adapted to their function? - ANSWER - They only contain half the
genetic information of a normal adult cell. - Long tail, allows them to swim to the ovum
(egg cell). They are also streamlined which makes this much easier. Flagella - Packed
full of mitochondria which allows them to get energy to swim. - Contain enzymes which
allow them to digest their way through the outer layer of the ovum (egg cell).
What is the function of a nerve cell? - ANSWER The job of a nerve cell is to send
electrical impulses around the body.
How is the nerve cell adapted to its function? - ANSWER - Axon carries the electrical
impulses from one part of the body to another. - Axon is covered with Myelin which
speeds up the transmission of nerve impulses. - The end of the axon has synapses.
The synapses are junctions which allow the impulse to pass from one nerve cell to
another. - Dendrites increase the surface area so other nerve cells can connect more
easily.
What is the key feature of a muscle cell? - ANSWER They can contract meaning that
they can get shorter.
