SSC
BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which of the following is not involved in causing a plant shoot to bend towards unidirectional light?
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cell division
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the shoot tip
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cell elongation
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auxin
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Explanation:
Detailed explanation-1: -The bending of the plant towards light is known as phototropism. It is due to the plant hormone auxins. When the growing parts of a phototropic plant detect sunlight, auxins (synthesized at the shoot tips) help the cells grow longer.
Detailed explanation-2: -Plants bend toward the light because cells on the shaded side elongate more, this happens just because of the action of the hormone Auxin.
There is 1 question to complete.