(B) Zinc $(Zn^{2+})$ is essential for the synthesis of tryptophan,which is a precursor of indole$-3-$acetic acid $(IAA)$,a major plant hormone belongi

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(B) Zinc $(Zn^{2+})$ is essential for the synthesis of tryptophan,which is a precursor of indole$-3-$acetic acid $(IAA)$,a major plant hormone belonging to the auxin group. Therefore,zinc plays a critical role in the biosynthesis of $IAA$.

Class 11 Biology Plant Growth and Development Auxin

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The function of zinc is:

A
Synthesis of chlorophyll
B
Biosynthesis of $IAA$
C
Closing of stomata
D
Oxidation of carbohydrate

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Class 11

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Plant Growth and Development

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Auxin

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The function of zinc is:

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