Q1. [1] § 6.2 COORDINATION IN PLANTS § 6.2.1 Immediate Response to Stimulus § 6.2.2 Movement Due to Growth
In plants the role of cytokinin is :
- (a) Promote cell division.
- (b) Wilting of leaves.
- (c) Promote the opening of stomatal pore.
- (d) Help in the growth of stem.
Previously asked in CBSE board exam
2023 31/4/1 Q11
Generated by claude-sonnet-4-6 · 2026-06-15 06:49 · grounding rag
Model Answer
(a) Promote cell division.
Cytokinin is a plant hormone that promotes cell division (cytokinesis) in plants.
Explanation
The question tests knowledge of plant hormones from Chapter 6. Cytokinin specifically promotes cell division and is used in tissue culture to stimulate rapid cell division (callus formation). The other options describe functions of Abscisic acid (wilting/stomatal closure) and Auxin/Gibberellin (stem growth). Examiners expect direct identification of the correct option with a brief supporting reason.
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