plant hormones

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  • Created by: XxzoexX
  • Created on: 09-03-15 18:04
what are plant hormones called and where is it made?
auxin and its made at the tip of the shoots
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what is phototropism?
a plant response to light is called phototropism. if a plant shoot gets light from one side only, the auxin will build up on the shaded side on the stem. this causes more growth on the shaded side. as a result the plant grows up towards the light.
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what is geotropism?
a plants response to gravity is called geotropism. shoots grow up away from gravity, and roots grow down toward gravity. auxin collect on the lower side of shoots and roots. this stimulates the growth of cells on this side in shoots.
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how do gardeners use plant hormones?
to make plants grow and develop in ways that they want. gardeners often grow new plants from cuttings. they dip the base of the cutting into rooting hormone. this contains a plant hormone that makes the cutting grow roots.
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Card 2

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what is phototropism?

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a plant response to light is called phototropism. if a plant shoot gets light from one side only, the auxin will build up on the shaded side on the stem. this causes more growth on the shaded side. as a result the plant grows up towards the light.

Card 3

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what is geotropism?

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Card 4

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how do gardeners use plant hormones?

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Card 5

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kdjksdjkfsj

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