Biology GCSE AQA Year 10 Mock Exams
Magnification = image size / size of real object - Correct Answers-What is the equation for
magnification?
Light microscope, transmission electron microscopes, scanning electron microscopes - Correct
Answers-What are the names of the 3 microscopes?
Give 2D images with very high magnification and resolution - Correct Answers-Transmission
electron microscopes...
Give 3D images with lower magnification - Correct Answers-Scanning electron microscopes...
Cell membrane, nucleus, cytoplasm, mitochondria, ribosomes - Correct Answers-Animal cells
contain...
Chloroplasts, cell wall and a permanent vacuole - Correct Answers-What do plant cells contain,
not animal cells?
Cellulose strengthens the cell and gives it support - Correct Answers-What is the cell wall made
from and what do they do?
Chlorophyll absorbs light so the plant can make food by photosynthesis - Correct Answers-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 Answers-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 Answers-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
Answers-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 Answers-Give 4
adaptions of sperm cells
Osmosis involves water only, needs a semi permeable membrane and high to low
concentration. - Correct Answers-Describe osmosis
Across a high to low concentration and involves the transport of solutes. - Correct Answers-
Describe diffusion
Requires energy, against concentration gradient, needs a semi permeable membrane and
involves the transport of solutes. - Correct Answers-Describe active transport
Used to test for carbon dioxide and goes cloudy if present - Correct Answers-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 Answers-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 Answers-Describe stage 2 of the cell cycle
The cytoplasm and the cell membranes also divide to form 2 identical daughter cells. - Correct
Answers-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 Answers-What are stem cells and what are they used
for?
A group of cells with similar structure and function working together - Correct Answers-Define a
tissue
Collections of tissues each working together to perform a specific function - Correct Answers-
Define an organ
Magnification = image size / size of real object - Correct Answers-What is the equation for
magnification?
Light microscope, transmission electron microscopes, scanning electron microscopes - Correct
Answers-What are the names of the 3 microscopes?
Give 2D images with very high magnification and resolution - Correct Answers-Transmission
electron microscopes...
Give 3D images with lower magnification - Correct Answers-Scanning electron microscopes...
Cell membrane, nucleus, cytoplasm, mitochondria, ribosomes - Correct Answers-Animal cells
contain...
Chloroplasts, cell wall and a permanent vacuole - Correct Answers-What do plant cells contain,
not animal cells?
Cellulose strengthens the cell and gives it support - Correct Answers-What is the cell wall made
from and what do they do?
Chlorophyll absorbs light so the plant can make food by photosynthesis - Correct Answers-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 Answers-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 Answers-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
Answers-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 Answers-Give 4
adaptions of sperm cells
Osmosis involves water only, needs a semi permeable membrane and high to low
concentration. - Correct Answers-Describe osmosis
Across a high to low concentration and involves the transport of solutes. - Correct Answers-
Describe diffusion
Requires energy, against concentration gradient, needs a semi permeable membrane and
involves the transport of solutes. - Correct Answers-Describe active transport
Used to test for carbon dioxide and goes cloudy if present - Correct Answers-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 Answers-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 Answers-Describe stage 2 of the cell cycle
The cytoplasm and the cell membranes also divide to form 2 identical daughter cells. - Correct
Answers-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 Answers-What are stem cells and what are they used
for?
A group of cells with similar structure and function working together - Correct Answers-Define a
tissue
Collections of tissues each working together to perform a specific function - Correct Answers-
Define an organ
