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The concentration of auxin is highest in _______

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in Biology – Class 11 by (272k points)
The concentration of auxin is highest in _______

(a) leaves

(b) stem

(c) growing tips

(d) vascular bundles

I got this question by my college director while I was bunking the class.

Question is from Growth Regulators in Plants topic in portion Plant Growth and Development of Biology – Class 11

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Correct option is (c) growing tips

Easy explanation: The concentration of auxin is found to be highest in growing tips as they are the source of the hormone. It further spreads to leaves & stem. Vascular bundles have no role in the activity of PGRs.

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