BIOLOGY
HORMONES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which of the following statement is correct?
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The higher the auxin in the root, the higher the growth rate.
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The lower the auxin in the root, the lower the growth rate.
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The higher the auxin in the shoot, the higher the growth rate.
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The lower the auxin in the shoot, the higher the growth rate.
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Explanation:
Detailed explanation-1: -The application of very high concentrations of auxin inhibits the growth of shoots directly.
Detailed explanation-2: -Correct option: a IAA and IBA are natural but NAA 2 4-D and 2 4 5-T are synthetic auxins. Explanation:Natural auxin are naturally occurring auxin plants hormone which is called photo hormones. Eg. IAA and IBB.
Detailed explanation-3: -Auxin hormone increases the rate of growth in a stem but it decreases the rate of growth in a root.
Detailed explanation-4: -Shoots and roots respond differently to high concentrations of auxins: cells in shoots grow more. cells in roots grow less.
There is 1 question to complete.