Phototropism

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IAA
Indoleacetic acid is an auxin that stimulates growth.
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Coleoptile
Protective sheath that covers the first leaf in grasses and cereals.
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Hormomes
Produced steadily over time and control long-term changes.
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Phototropism
Bending towards a light source.
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Went experiment
Experiments A-D. A- tip is removed and replaced. B- metal for inserted one side of shoot. C- shoot grown in dark and tip removed, left on agar jelly and replaced. D- Experiment C but agar block replaced asymmetrical.
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Meristems
Site of auxin synthesis. They are actively transported away to where they can bring about a range of responses through their effect on cell elongation.
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Other cards in this set

Card 2

Front

Protective sheath that covers the first leaf in grasses and cereals.

Back

Coleoptile

Card 3

Front

Produced steadily over time and control long-term changes.

Back

Preview of the back of card 3

Card 4

Front

Bending towards a light source.

Back

Preview of the back of card 4

Card 5

Front

Experiments A-D. A- tip is removed and replaced. B- metal for inserted one side of shoot. C- shoot grown in dark and tip removed, left on agar jelly and replaced. D- Experiment C but agar block replaced asymmetrical.

Back

Preview of the back of card 5
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