Explain the role of stem in bending of plant towards the light
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A plant hormone called auxin is responsible for this. Auxin triggers a chemical reaction which weakens cell walls allong them to elongate and ultimately bending the plant towards Light .
auxin are sensitive to light
auxin are sensitive to light
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An auxin, is a plant growth hormone that helps regulate shoot growth. But when sunlight varies, auxin is broken down on the sunnier side of the stem. The higher concentration of auxin on the shady side causes the plant cells on that side to grow more so it bends toward the light.
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