Why do the coleoptiles of oats bend toward the light?

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    Oat coleoptiles exhibit negative phototropism.
    Changes in turgor pressure in cells on the darker side of the shoot cause the shoot to bend toward the light.
    Gibberellins stimulate growth on the illuminated side of the shoot.
    Auxins are found at highest concentrations and stimulate growth on the darker side of the shoot.

asked May 30, 2013 in Biology by anonymous
    

1 Answer

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Auxins are found at highest concentrations and stimulate growth on the darker side of the shoot.
answered May 31, 2013 by Bioshare ~Top Expert~ (34,070 points)



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