NEET2014Botany-Plant Growth Regulators
NEET 2014 Botany Auxins MCQ Question
Type: MCQ-conceptual-Medium-Class 11
Dr. F. Went noted that if coleoptile tips were removed and placed on agar for one hour, the agar would produce a bending when placed on one side of freshly-cut coleoptile stumps. Of what significance is this experiment?
A
It made possible the isolation and exact identification of auxin.
B
It is the basis for quantitative determination of small amounts of growth-promoting substances.
C
It supports the hypothesis that IAA is auxin.
D
It demonstrated polar movement of auxins.
Correct Answer
Option A
Detailed Explanation
This experiment demonstrated the presence of auxin in the coleoptile tips and its role in plant growth, leading to the isolation of auxin.
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