Question

Differentiate photoropsim from photonasty​

Answer 1

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Phototropism- it is a movement dependant to growth in plant.The shoot of the plant shows positive photo tropism and the root shows negative photo tropism.

Photo nasty-it is a movement not dependant on growth.Certain parts of some plants shows response to light but this does'nt affect the growth of the plant.eg,sunflower pointing towards the direction of sun during the daytime