Science Activity – Growth of Plant

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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