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WorksheetsAQA GCSE BIOLOGY - CELL BIOLOGY
Total questions: 50
Worksheet time: 25mins
Which food group best supports growth and repair?
Protein
Carbohydrate
Fat
Fibre
Eukaryotic cells have…
their genetic material enclosed in a nucleus
loose genetic material
no genetic material
too much genetic material
Where are embryonic stem cells found?
In embryos
In adults
In zygotes
In bones
Diffusion is a movement of molecules…
from low concentration to high concentration
against the concentration gradient
from high concentration to low concentration
by active transport
The subcellular structure found in a plant cell but NOT found in an animal cell is the…
nucleus
cell membrane
cytoplasm
chloroplasts
Which of these requires energy?
Diffusion
Hydrosis
Osmosis
Active transport
If a plant cell is placed in a concentrated sugar solution…
there is no net movement of water
water will enter the cell
water will leave the cell
the cell will gain mass
Where in a cell do most chemical reactions take place?
Vacuole
Nucleus
Mitochondria
Cytoplasm
What can bone marrow stem cells differentiate into?
Blood
Muscle
Skin
Bone
Which gas moves from the alveoli to the capillaries?
Carbon dioxide
Oxygen
Both carbon dioxide and oxygen
Helium
What are stem cells?
Big cells
Cells only found in plants
Undifferentiated cells
Specialised cells
Which type of stem cell can differentiate into any type of cell?
Adult stem cells
Embryonic stem cells
Egg stem cells
Sperm cells
What are some of the risks of stem cells?
Transfer of viral infections
Ethical objections
Religious objections
All of the options given are risks
Which organ system is the stomach part of?
The reproductive system
The circulatory system
The digestive system
The respiratory system
Bacterial cells do NOT have…
flagella
plasmids
loose gentic material
a nucleus enclosed in a membrane
What type of cells does mitosis produce?
Genetically different cells
Nothing
Genetically identical cells
Mice
How many chromosomes are in 'normal' body cells in a human?
28
46
21
12
Treatments with stem cells can help conditions such as…
the common cold
chicken pox
type 1 diabetes
obesity
Why would carrot pieces left in pure water gain mass?
Water moves into the carrot cells by osmosis
Water moves out of the carrot cells by diffusion
Substances move out of the carrot cells
Water moves out of the carrot cells by osmosis
What is the function of the cytoplasm?
To hold all the genetic information
It is where most chemical reactions take place
To allow substances in and out of the cell
To absorb sunlight
Osmosis involves the movement of water...
from any one place to another
from a high water concentration to a low water concentration through a partially permeable membrane
from a low water concentration to a high water concentration through a partially permeable membrane
in space
Osmosis is…
the movement of water
the movement of gas
the movement of liquids
the movement of gas and liquid
What do cells have to do before mitosis?
Divide
Change colour
Split in two
Grow
The effectiveness of an exchange surface is increased by…
a thin membrane
having a large surface area
having a good blood supply
all of the options provided
In plants cells, cell division leading to plant growth happens in…
all tissues
meristems
the stem
the leaf
What is the purpose of mitosis?
Growth and repair
Production of gametes
Sexual reproduction
No purpose
Which one of these factors increases the rate of diffusion?
When there is no difference between the concentration of the two areas
Temperature
The shape of a cell
None of these factors increases the rate of diffusion
Mitosis is part of the…
cell cycle
cell circle
cell's life
cell process
Which of these is an example of a specialised cell?
The nucleus
The cytoplasm
A sperm cell
The heart
How are specialised cells formed?
Using all the DNA in the cell
When cells grow
When cells die
When instructions in the DNA are switched on and off
Where are adult stem cells found?
Heart muscle
Brain
Bone marrow
Sperm cells
What is the first stage of mitosis?
Interphase
Metaphase
Telophase
Prophase
In a plant, the meristem contains…
stem cells
chloroplasts
a vacuole
cell walls
Diffusion takes place in…
liquids and gases
solids only
solids, liquids and gases
gases only
Which of these is a green pigment that allows photosynthesis to take place?
Chlorophyll
Nucleus
Cytoplasm
Mitochondria
Which of these characteristics helps villi to function efficiently?
They have a small surface area
They have a network of capillaries in them
They don't contain any capillaries
They have a thick layer of cells on their surface
When you are using a microscope, how do you calculate the image size?
I is size of image, A is actual size of object, M is magnification.
I = A x M
I = M / A
I = M - A
I = A + M
The rate of diffusion happens faster when…
there is a large surface area to volume ratio
there is a low surface area to volume ratio
the surface area to volume ratio is the same
the area is the same
After a sperm fertilises an egg, is formed.
a baby
a foetus
an embryo
a zygote
When water enters a cell it becomes…
flaccid
turgid
plasmolysed
smaller
A zygote is…
an embryo
the cell formed when a sperm meets an egg
a ball of cells
a cell
What type of reproduction occurs by meiosis?
Sexual
Asexual
None
Cloning
If one cell divides once by mitosis, how many new cells are made?
6
8
4
2
Cells make up…
organs
tissues
organ systems
organisms
Active transport is the movement of substances from…
high concentration to low concentration
low concentration to high concentration
nowhere
medium concentration to medium concentration
Which of these has the highest magnification?
An electron microscope
A light microscope
A hand lens
A proton microscope
What is the name given to the original cell that divides during mitosis or meiosis?
Daughter cell
Father cell
Mother cell
Parent cell
What can slow down growth in humans?
Too much protein
Poor diet
Eating a balanced diet
Eating too much carbohydrate
When cells differentiate they…
speed up their chemical reactions
get smaller
get bigger
become specialised
Osmosis is the movement of water molecules across…
an impermeable membrane
no membrane
a fully permeable membrane
a semi-permeable membrane
