The Effect of Internal and External Factors on Growth of Plant
Effect of Light
They’re
comparing the growth of plant in two different condition , one grown in
darkness and the other exposure to light
Why plant in darkness elongate more than the plant
exposure to light?
they explain it’s caused by the plant growth
hormone called auxin Auxin promotes cell
growth stimulates plant cells to elongate.
When a plant bends toward the
light, the auxin concentration is higher on the side away from the light, these
cells elongate more and this causes the seedling to bend so that it’s facing
the light, but
the chlorophyll produce well in the plant that exposure to light.
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