Why can the same hormone have different effects in different parts of a plant?
Answer and explanation
Correct answer: Because the sensitivity and function of different organs may differ
The governing concept is differential sensitivity to plant hormones. The same chemical messenger can produce different responses because roots, stems, and shoots have different functions, hormone concentrations, receptors, and sensitivities. For example, a concentration that promotes growth in one organ may inhibit it in another. Thus option A is correct. Options B and C are false, and D is incorrect because roots and stems have different roles.
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What is the correct answer to this question?
Because the sensitivity and function of different organs may differ
Why is this the correct answer?
The governing concept is differential sensitivity to plant hormones. The same chemical messenger can produce different responses because roots, stems, and shoots have different functions, hormone concentrations, receptors, and sensitivities. For example, a concentration that promotes growth in one organ may inhibit it in another. Thus option A is correct. Options B and C are false, and D is incorrect because roots and stems have different roles.
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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