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Why do target organs respond only to specific hormones?

Answer and explanation

Correct answer: Because their cells have receptors that recognize that hormone

The governing concept is hormone specificity through receptors. Hormones may circulate widely in the blood, but they produce a response only in cells that possess the appropriate receptor and the biochemical machinery linked to it. The receptor recognizes the hormone’s shape and starts a cellular response. Therefore A is correct. Blood does reach target organs, hormones are not universally excluded from organs, and the brain does not always destroy them, so B, C, and D are false.

Related tags

Target OrganHormone ReceptorsEndocrine SpecificityPlant HormonesControl And CoordinationScienceClass 10 Mcq

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