Biology GCSE AQA Year 10 Mock
Exams||Newest Exam With Mostly
Tested Questions And Correct
Answers||Graded A+
Magnification = image size / size of real object -CORRECT ANSWER What is the
equation for magnification?
Light microscope, transmission electron microscopes, scanning electron microscopes -
CORRECT ANSWER What are the names of the 3 microscopes?
Give 2D images with very high magnification and resolution -CORRECT ANSWER
Transmission electron microscopes...
Give 3D images with lower magnification -CORRECT ANSWER Scanning electron
microscopes...
Cell membrane, nucleus, cytoplasm, mitochondria, ribosomes -CORRECT ANSWER
Animal cells contain...
Chloroplasts, cell wall and a permanent vacuole -CORRECT ANSWER What do plant
cells contain, not animal cells?
Cellulose strengthens the cell and gives it support -CORRECT ANSWER What is the
cell wall made from and what do they do?
Chlorophyll absorbs light so the plant can make food by photosynthesis -CORRECT
ANSWER What do chloroplasts contain and what does it do?
They increase the surface area available for water to move into the cell.
They have a large permanent vacuole that speeds up the process of osmosis from the
soil.
They have many mitochondria that transfer the energy needed for active transport of
mineral ions. -CORRECT ANSWER Give 3 adaptions of the root hair cells
Xylem cells are alive when first formed but a chemical called lignin builds up in spirals in
the cell walls. The cells die and form hollow tubes that transfer water and mineral ions.
The spirals of lignin in the xylem cells make them very strong to help them withstand
pressure. -CORRECT ANSWER Give 2 adaptions of xylem cells
Lots of dendrites to make connections to other nerve cells.
, An axon that carries nerve impulses from one place to another.
Synapses (nerve endings) are adapted to pass impulses to another cell using
transmitter chemicals; they also have lots of mitochondria to make the transmitter
chemicals. -CORRECT ANSWER Give 3 adaptions of nerve cells
A long tail moves to help the sperm travel.
Lots of mitochondria for energy needed for the tail to work.
Acrosome stores digestive enzymes to break outer layer of egg.
Large nucleus allows for genetic information to be passed on. -CORRECT ANSWER
Give 4 adaptions of sperm cells
Osmosis involves water only, needs a semi permeable membrane and high to low
concentration. -CORRECT ANSWER Describe osmosis
Across a high to low concentration and involves the transport of solutes. -CORRECT
ANSWER Describe diffusion
Requires energy, against concentration gradient, needs a semi permeable membrane
and involves the transport of solutes. -CORRECT ANSWER Describe active transport
Used to test for carbon dioxide and goes cloudy if present -CORRECT ANSWER What
is lime water used to test for and what happens?
Cell grows bigger, increases mass, and carry out normal cell activities. They replicate
their DNA to form 2 copies of each chromosome ready for cell division. -CORRECT
ANSWER Describe stage 1 of the cell cycle
Mitosis occurs; one set of chromosomes is pulled to each end of the dividing cell and
the nucleus divides. -CORRECT ANSWER Describe stage 2 of the cell cycle
The cytoplasm and the cell membranes also divide to form 2 identical daughter cells. -
CORRECT ANSWER Describe stage 3 of the cell cycle
Unspecialised cells which can become any type of cell needed, found in the early
development of animal and plant embryos. -CORRECT ANSWER What are stem cells
and what are they used for?
A group of cells with similar structure and function working together -CORRECT
ANSWER Define a tissue
Collections of tissues each working together to perform a specific function -CORRECT
ANSWER Define an organ
Groups of organs that all work together to form organisms e.g the digestive system -
CORRECT ANSWER Define an organ system
Exams||Newest Exam With Mostly
Tested Questions And Correct
Answers||Graded A+
Magnification = image size / size of real object -CORRECT ANSWER What is the
equation for magnification?
Light microscope, transmission electron microscopes, scanning electron microscopes -
CORRECT ANSWER What are the names of the 3 microscopes?
Give 2D images with very high magnification and resolution -CORRECT ANSWER
Transmission electron microscopes...
Give 3D images with lower magnification -CORRECT ANSWER Scanning electron
microscopes...
Cell membrane, nucleus, cytoplasm, mitochondria, ribosomes -CORRECT ANSWER
Animal cells contain...
Chloroplasts, cell wall and a permanent vacuole -CORRECT ANSWER What do plant
cells contain, not animal cells?
Cellulose strengthens the cell and gives it support -CORRECT ANSWER What is the
cell wall made from and what do they do?
Chlorophyll absorbs light so the plant can make food by photosynthesis -CORRECT
ANSWER What do chloroplasts contain and what does it do?
They increase the surface area available for water to move into the cell.
They have a large permanent vacuole that speeds up the process of osmosis from the
soil.
They have many mitochondria that transfer the energy needed for active transport of
mineral ions. -CORRECT ANSWER Give 3 adaptions of the root hair cells
Xylem cells are alive when first formed but a chemical called lignin builds up in spirals in
the cell walls. The cells die and form hollow tubes that transfer water and mineral ions.
The spirals of lignin in the xylem cells make them very strong to help them withstand
pressure. -CORRECT ANSWER Give 2 adaptions of xylem cells
Lots of dendrites to make connections to other nerve cells.
, An axon that carries nerve impulses from one place to another.
Synapses (nerve endings) are adapted to pass impulses to another cell using
transmitter chemicals; they also have lots of mitochondria to make the transmitter
chemicals. -CORRECT ANSWER Give 3 adaptions of nerve cells
A long tail moves to help the sperm travel.
Lots of mitochondria for energy needed for the tail to work.
Acrosome stores digestive enzymes to break outer layer of egg.
Large nucleus allows for genetic information to be passed on. -CORRECT ANSWER
Give 4 adaptions of sperm cells
Osmosis involves water only, needs a semi permeable membrane and high to low
concentration. -CORRECT ANSWER Describe osmosis
Across a high to low concentration and involves the transport of solutes. -CORRECT
ANSWER Describe diffusion
Requires energy, against concentration gradient, needs a semi permeable membrane
and involves the transport of solutes. -CORRECT ANSWER Describe active transport
Used to test for carbon dioxide and goes cloudy if present -CORRECT ANSWER What
is lime water used to test for and what happens?
Cell grows bigger, increases mass, and carry out normal cell activities. They replicate
their DNA to form 2 copies of each chromosome ready for cell division. -CORRECT
ANSWER Describe stage 1 of the cell cycle
Mitosis occurs; one set of chromosomes is pulled to each end of the dividing cell and
the nucleus divides. -CORRECT ANSWER Describe stage 2 of the cell cycle
The cytoplasm and the cell membranes also divide to form 2 identical daughter cells. -
CORRECT ANSWER Describe stage 3 of the cell cycle
Unspecialised cells which can become any type of cell needed, found in the early
development of animal and plant embryos. -CORRECT ANSWER What are stem cells
and what are they used for?
A group of cells with similar structure and function working together -CORRECT
ANSWER Define a tissue
Collections of tissues each working together to perform a specific function -CORRECT
ANSWER Define an organ
Groups of organs that all work together to form organisms e.g the digestive system -
CORRECT ANSWER Define an organ system
