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Plant Hormones Flashcards | StudBud
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Plant Hormones
Plant Hormones
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AQA GCSE Biology Plant hormones and controlling growth
Flashcards
11 cards
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Practice quiz
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Questions
11
Answers
1
Shoots grow towards the light, what is the correct term for this?
Positive hydrotropism
Positive geotropism
Positive phototropism
Negative lightropism
2
Where are auxins made?
Tips of roots and shoots
Tip of the shoot
Tip of the root
Stem
3
How do auxins affect root cells?
Inhibit cell elongation
Causes cell death
No effect
Promote cell elongation
4
What are the group of hormones controlling plant growth?
Oestrogen
Axins
Auxins
FSH
5
Which side of a growing stem will auxin accumulate.
The tip
The bottom
The dark side
The light side
6
Which way would a plant grow if it exhibits negative geotropism?
Towards water
Away from (against) gravity
Away from light
Towards (with) gravity
7
Which part of a germinating shoot (underground) will auxin collect?
The top
The light side
The bottom
The dark side
8
What effect does auxin have on shoot cells?
Has no effect
Causes growth
Inhibits cell elongation
Promotes cell elongation
9
What is a stimulus.
When the environment stays the same.
A change in the environment a plant responds to.
The growth of a plant towards light.
A change in the behaviour of a plant.
10
What is the other prefix of gravitropism
Hydro
Geo
Photo
Chemo
11
What is hydrotropism a response to?
Water
Heat
Light
Gravity
