Phototropism
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Last updated 3:00 AM on 10/20/22
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5 Terms
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Plant growth in response to
Light
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Plant tip
The PLANT TIP detects the stimuli and send a CHEMICAL to the area of ELONGATION
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Auxin
AUXIN is a HORMONE that promotes cell growth or elongation of cwlls FACING AWAY from the light, causing the leaf or stem to BEND TOWARDS the light
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Positive phototropism
Growth TOWARDS the light source
eg. stem, flower
eg. stem, flower
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Negative phototropism
Growth AWAY from the light source
eg. roots
eg. roots
