where is this cell is found in a flowering plant?
In the male part of a flower.
In the roots of the plant.
On the surface of a leaf.
In side a leaf.
Which TWO structures are found in plant cells but not in animal cells.
Vacuole and cell membrane
Chloroplasts and cell membrane
Chloroplasts and cell wall
Cell membrane and large vacuole.
Where does photosynthesis occur in a rose bush?
A in all the parts
B in parts R and S only
C in part R only
D in part Q only
Plants often turn some of the food they make into another substance for storage. The name of this substance is:
A glucose.
B starch.
C fibre.
D pasta.
Which of these shows the correct word equation for photosynthesis?
glucose + carbon dioxide → water + oxygen (+ energy)
glucose (+ energy) → oxygen + glycerol
water + carbon dioxide → glucose + oxygen
chlorophyll + carbon dioxide → water + glycogen
Leaves are often wide so that they can:
A absorb as much sunlight as possible.
B catch as much rain as possible.
C provide shelter for animals living under them.
D float to the ground when they drop in autumn.
Gases get into and out of a leaf by:
diffusion.
absorption.
conduction.
convection.
Look at this list of substances. glucose, fat, cellulose, protein Which of these substances can plants make?
glucose and cellulose only
glucose, cellulose and fat
glucose, cellulose and protein
all of them
Plants need cellulose to:
A store energy.
B repair damaged cells.
C make cell walls.
D make cell surface membranes.
If plants do not get enough water they start to:
A shrink.
B grow towards the light.
C grow bigger roots.
D wilt.
One important type of mineral salt for plants is:
A sodium chloride
B nitrates
C clay
D loam
Water is carried up a plant in xylem tubes. What else do xylem tubes carry?
A glucose
B fibre
C mineral salts
D pollen
The atmosphere is about:
A 78% oxygen and 21% nitrogen.
B 78% nitrogen and 21% oxygen.
C 8% carbon dioxide and 21% oxygen.
D 78% oxygen and 21% carbon dioxide.
Look at these chemical processes. photosynthesis, respiration, burning fuels. Which of these processes add carbon dioxide to the air?
A respiration and burning
B respiration only
C photosynthesis and respiration
D burning only
Plants are important in keeping the atmosphere in balance because:
A they use up oxygen.
B they use up carbon dioxide.
C they provide food for animals and humans.
D they use water.
Which of these would not be a disadvantage of cutting down forests?
A Logging companies could make more profits.
B There would be fewer trees to keep the atmosphere in balance.
C Some species might become extinct.
D Floods might wash away the soil.
The roots have a number of functions. Tick TWO functions of roots.
Absorb carbon dioxide from the air.
Absorb water and mineral salts from the soil.
Absorb glucose from soil.
Hold the plant in the soil.
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