what is phototropism_?
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Phototropism is the growth of an organism in response to a light stimulus.
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many plants and some other organisms such as fungi exhibit a tendency to grow towards a light source which is known as phototropism
this movement is very pronounced in some plants
plant response also varies according to the wavelength of light to which they exposed
red light have strong response
plant hormone called auxin trigger cellular Change and swelling inside plant causing it to move towards light
some plants also show negative phototropism means they show growth away from light source
this movement is very pronounced in some plants
plant response also varies according to the wavelength of light to which they exposed
red light have strong response
plant hormone called auxin trigger cellular Change and swelling inside plant causing it to move towards light
some plants also show negative phototropism means they show growth away from light source
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