If the effect of cytokinin decreases in a plant, which level of growth may be affected first?
Answer and explanation
Correct answer: Cell division
The governing concept is the role of cytokinins as plant hormones that promote cell division and support the formation of new tissues, especially in actively growing regions. If cytokinin action decreases, the rate of cell division may decline first, so option A is correct. Heartbeat, blood-sugar regulation and breathing rate are animal physiological functions controlled by different systems, not direct cytokinin targets.
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What is the correct answer to this question?
Cell division
Why is this the correct answer?
The governing concept is the role of cytokinins as plant hormones that promote cell division and support the formation of new tissues, especially in actively growing regions. If cytokinin action decreases, the rate of cell division may decline first, so option A is correct. Heartbeat, blood-sugar regulation and breathing rate are animal physiological functions controlled by different systems, not direct cytokinin targets.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: Control and Coordination. Topic: Plant hormones.
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