Chemistry NEET Full Syllabus Mock Test 180 Question New Syllabus Mock Test - 7 PCB Single Correct MCQ
Published on: August 14, 2026

Which of the following is not a physiological effect/properties of cytokinins?

A
It is produced in actively growing tissue
B
It is transported through xylem elements
C
It enhances the expansion of leaf cell in leaf discs and cotyledons
D
It enhances the senescence of leaves

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The correct answer is:
D

Cytokinins delay the senescence of leaves and other organs by controlling protein synthesis and mobilisation of resources. Cytokinins are plant growth hormones which are basic in nature, either aminopurine or phenyl urea derivatives that promotes cell division either alone or in conjugation with auxin.

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