plants - additional info

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9 Terms

1
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tropism

refers to slow & permanent reaction by plants

2
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phototropism

TYPES OF TROPISM:

plant shoots grow toward a source of light

3
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gravitropism

TYPES OF PHOTOTROPISM:

roots grow downward, shoots grow upward in response to gravity

4
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thigmotropism

TYPES OF PHOTOTROPISM:

plant grows in response to touch

  • ex. climbing plants around fences

5
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auxin
cell differentiation, cell elongation, plant growth
6
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gibberellin
stem elongation, flower development
7
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ethylene
ripening of fruit
8
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abscisic acid
water control, control of stomata
9
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cytokinin
cell division, cell repair