If a coleoptile is illuminated from the side, auxin concentrations ____. a. increases at the top...
If a coleoptile is illuminated from the side, auxin concentrations ____.
a. increases at the top of the stem only, both on the illuminated and on the shaded side
b. increases on the shaded side
c. increased in the entire stem
d. decrease on the shaded side
Homework Answers
Answer-If a coleoptile is illuminated from the side, auxin concentrations increases on the shaded side.
When light hits one side of the coleoptile the phototropins are more active on the side with light, causing the auxin to flow down the shady side. The side of the coleoptile with less auxin has less elongated cells, and the side with more auxin has more elongated cells, causing the tip to bend toward the light.
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If a coleoptile is illuminated from the side, auxin
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maximal when there is no directional stimulus?
2. What is the auxin concentration in region a
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