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Plant hormones (auxins) and required practical 8 - AQA GCSE Biology Flashcards | StudBud
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Plant hormones (auxins) and required practical 8 - AQA GCSE Biology
Plant hormones (auxins) and required practical 8 - AQA GCSE Biology
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1
What is the name of the hormone that controls tropisms?
Xanthin
Auxin
Axine
Ethene
2
What is the response of plants to light called?
Phototropism
Thermotropism
Hydrotropism
Lightropism
3
When investigating the effect of light on the growth of seedlings, what is the independent variable?
Species of seedling
Length of seedlings
Volume of water
Direction or presence of light
4
What is a tropism?
Production of plant hormones
Movement of a plant
Growth of a plant in response to a stimulus
Growth of a plant in response to a receptor
5
Why do plant shoots need to grow towards light?
For more photosynthesis
For more decomposition
For more anaerobic respiration
For more aerobic respiration
6
When investigating the effect of light on the growth of seedlings, which is NOT a control variable?
Temperature
Length of seedlings measured
Species of seedling
Volume of water
7
What is the response of plants to gravity called?
Anchorism
Negative tropism
Hydrotropism
Gravitropism
8
How does auxin interact with light?
It moves to the shaded side of a shoot
It is destroyed by light
It moves to the light side of a shoot
More is made in the light
9
In plant SHOOTS, what does auxin do?
Increases cell growth
Inhibits / decreases cell growth
10
In plant ROOTS, what does auxin do?
Inhibits / decreases cell growth
Increases cell growth
