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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.

Related tags

Plant-HormonesOrgan-SensitivityPlant-GrowthPlant HormonesControl And CoordinationScienceClass 10 Mcq

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