If a chemical increases cell division in a plant but does not directly increase stem length which hormone is it acting like?
Answer and explanation
Correct answer: Cytokinin
The governing concept is the role of plant hormones in growth regulation. Cytokinins primarily promote cell division and help form new tissues, whereas gibberellins are more strongly associated with stem elongation. Since the stated effect is increased division without direct stem lengthening, the chemical acts like cytokinin, so A is correct. Adrenaline and insulin are animal hormones and do not explain this plant response.
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What is the correct answer to this question?
Cytokinin
Why is this the correct answer?
The governing concept is the role of plant hormones in growth regulation. Cytokinins primarily promote cell division and help form new tissues, whereas gibberellins are more strongly associated with stem elongation. Since the stated effect is increased division without direct stem lengthening, the chemical acts like cytokinin, so A is correct. Adrenaline and insulin are animal hormones and do not explain this plant response.
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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