12081103
Descrição
Quiz por Jeffrey Piggott, atualizado more than 1 year ago
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Criado por Jeffrey Piggott
quase 7 anos atrás
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Questão 1
Questão
where is this cell is found in a flowering plant?
Responda
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In the male part of a flower.
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In the roots of the plant.
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On the surface of a leaf.
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In side a leaf.
Questão 2
Questão
Which TWO structures are found in plant cells but not in animal cells.
Responda
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Vacuole and cell membrane
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Chloroplasts and cell membrane
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Chloroplasts and cell wall
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Cell membrane and large vacuole.
Questão 3
Responda
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A in all the parts
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B in parts R and S only
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C in part R only
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D in part Q only
Questão 4
Questão
Plants often turn some of the food they make into another substance for storage. The name of this substance is:
Responda
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A glucose.
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B starch.
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C fibre.
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D pasta.
Questão 5
Questão
Which of these shows the correct word equation for photosynthesis?
Responda
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glucose + carbon dioxide → water + oxygen (+ energy)
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glucose (+ energy) → oxygen + glycerol
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water + carbon dioxide → glucose + oxygen
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chlorophyll + carbon dioxide → water + glycogen
Questão 6
Questão
Leaves are often wide so that they can:
Responda
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A absorb as much sunlight as possible.
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B catch as much rain as possible.
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C provide shelter for animals living under them.
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D float to the ground when they drop in autumn.
Questão 7
Questão
Gases get into and out of a leaf by:
Responda
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diffusion.
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absorption.
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conduction.
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convection.
Questão 8
Questão
Look at this list of substances.
glucose, fat, cellulose, protein
Which of these substances can plants make?
Responda
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glucose and cellulose only
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glucose, cellulose and fat
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glucose, cellulose and protein
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all of them
Questão 9
Questão
Plants need cellulose to:
Responda
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A store energy.
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B repair damaged cells.
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C make cell walls.
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D make cell surface membranes.
Questão 10
Questão
If plants do not get enough water they start to:
Responda
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A shrink.
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B grow towards the light.
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C grow bigger roots.
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D wilt.
Questão 11
Questão
One important type of mineral salt for plants is:
Responda
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A sodium chloride
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B nitrates
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C clay
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D loam
Questão 12
Questão
Water is carried up a plant in xylem tubes. What else do xylem tubes carry?
Responda
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A glucose
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B fibre
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C mineral salts
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D pollen
Questão 13
Questão
The atmosphere is about:
Responda
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A 78% oxygen and 21% nitrogen.
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B 78% nitrogen and 21% oxygen.
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C 8% carbon dioxide and 21% oxygen.
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D 78% oxygen and 21% carbon dioxide.
Questão 14
Questão
Look at these chemical processes.
photosynthesis, respiration, burning fuels.
Which of these processes add carbon dioxide to the air?
Responda
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A respiration and burning
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B respiration only
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C photosynthesis and respiration
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D burning only
Questão 15
Questão
Plants are important in keeping the atmosphere in balance because:
Responda
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A they use up oxygen.
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B they use up carbon dioxide.
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C they provide food for animals and humans.
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D they use water.
Questão 16
Questão
Which of these would not be a disadvantage of cutting down forests?
Responda
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A Logging companies could make more profits.
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B There would be fewer trees to keep the atmosphere in balance.
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C Some species might become extinct.
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D Floods might wash away the soil.
Questão 17
Questão
The roots have a number of functions.
Tick TWO functions of roots.
Responda
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Absorb carbon dioxide from the air.
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Absorb water and mineral salts from the soil.
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Absorb glucose from soil.
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Hold the plant in the soil.
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