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5.5. Plant Hormones GCSE Biology AQA Flashcards | StudBud
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5.5. Plant Hormones GCSE Biology AQA
5.5. Plant Hormones GCSE Biology AQA
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5.5. Plant Hormones GCSE Biology AQA
Flashcards
14 cards
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Questions
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Answers
1
An experiment used four shoots, described below. Which ones will grow towards the light on the right side of the room?
Shoot with no cap
Shoot with a transparent cap
Shoot with an opaque cap
Shoot with the tip removed
2
A farmer wants his more roses to bloom to sell to florists, which hormone should be give to the roses?
Glucagon
Ethene
Auxin
Gibberellins
3
Which hormone is used by supermarkets to ripen fruit on arrival to the stores?
Auxin
Gibberellins
Ethene
Glucagon
4
Which definition describes the term hydrotropism?
The directional response made by a plant to gravity.
The directional response made by a plant to water.
The plant hormone involved with phototropism and gravitropism.
The directional movement of parts of a plant towards light.
5
Plants are unable to move away from their environment. Instead they move certain organs, like roots, leaves or flowers.
True
False
6
Gibberellins regulate plant growth by...
help plants to grow taller
stimulate cell elongation
initiate seed germination
stimulates the ripening of fruits
7
Which definition describes the term gravitropism?
The plant hormone involved with phototropism and gravitropism.
The directional response made by a plant to gravity.
The directional movement of parts of a plant towards light.
The directional response made by a plant to water.
8
For the shoot to bend towards the light, auxin will build up on which plant of the shoot?
on the left hand side, in the shade
on the right hand side, facing the light
there will be no auxin
throughout the tip
9
Which form of gravitropism involves the shoot of the plant growing upwards from the seed.
Positive gravitropism
Negative gravitropism
10
Which form of gravitropism involves the roots of the plant growing downwards from the seed.
Positive gravitropism
Negative gravitropism
11
Which definition describes the term phototropism?
The plant hormone involved with phototropism and gravitropism.
The directional response made by a plant to water.
The directional response made by a plant to gravity.
The directional movement of parts of a plant towards light.
12
Which hormone helps plants to bend towards the light?
Ethene
Auxin
Progesterone
Gibberellins
13
In a germinating seed on its side, auxin causes the cell elongation to...
Select two
decrease on the upper side of the root.
increase on the upper side of the root.
increase on the underside of the root.
decrease on the underside of the root.
14
The response of these plants is...
hydrotropism
gravitropism
phototropism
