Nervous System and Hormones ~ Biology

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Tropism
A response to a stimulus in which an organism grows towards or away.
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Negative Tropism
Tropism in which the response is away from the stimulus.
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Phototropism
Tropism in response to light.
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Auxins
Plant hormone that affects the growth and elongation of cells in plants.
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Geotropism
Tropism in response to gravity.
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Germination
When a seed starts to grow a shoot and a root.
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Gibberellins
Set of plant hormones that can cause seeds to germinate and flowers and fruit to form.
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Are plant shoots positively or negatively phototropic?
Positively.
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Are plant roots positively or negatively phototropic?
Negatively.
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Do auxins in roots reduce or stimulate cell growth?
Reduce.
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Do auxins in shoots reduce or stimulate cell growth?
Stimulate.
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Other cards in this set

Card 2

Front

Negative Tropism

Back

Tropism in which the response is away from the stimulus.

Card 3

Front

Phototropism

Back

Preview of the front of card 3

Card 4

Front

Auxins

Back

Preview of the front of card 4

Card 5

Front

Geotropism

Back

Preview of the front of card 5
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