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8 Cards in this Set
- Front
- Back
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What is the name of the hormone that controls plant growth?
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The name of the hormone is Auxin
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Where in the plant is Auxin found?
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Auxin is mainly found in the tips of the roots and stem
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What is the effect of these hormones in each are of the plant?
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In a shoot, the shaded side contains more auxin. This means that the shaded side grows longer, making the shoot bend towards the light.
In the roots the auxin makes them grow less but in the shoots it makes them grow more |
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What is phototropism?
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Phototropism is when the shoot grows towards the light.
There is Negative and positive phototropism |
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What is the difference between negative and positive phototropism?
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Negative phototropism is when it grows away from the light and positive is when it grows towards the light
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What is geotropism?
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Geotropism is the growth of the plant in response to gravity.
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What is the difference between positive and negative geotropsim?
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Negative geotropism is when it grows against the force of gravity and positive geotropism is when it grows towards the force of gravity
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Describe how hormones make plants grow towards the light
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Auxins control the growth at the tips of shoots and roots
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