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If the target organ of a hormone is present but its receptors have changed what may happen?

Answer and explanation

Correct answer: The effect may be reduced even if the hormone is present

The governing concept is receptor-specific hormone action. A hormone produces a response only when it binds appropriately to receptors on or inside its target cells. If the target organ remains present but its receptors are altered, binding or signal transmission may become ineffective, so the response can decrease even though the hormone is circulating. Thus A is correct; B and C are biologically meaningless, while D confuses hormonal action with nerve conduction.

Related tags

Control CoordinationHormone ReceptorEndocrine SystemControl And CoordinationWorld Of LivingScienceClass 10 Mcq

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