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Regarding hormones and their receptor - choose the incorrect option :


( A ) Hormone receptors present on the cell membrane of the target cells are called membrane-bound receptors and the receptors present inside the target cell are called intracellular receptors, mostly nuclear receptors (present in the nucleus).
( B ) Binding of a hormone to its receptor leads to the formation of a hormone-receptor complex
( C ) Hormone receptors are non specific.
( D ) Hormones produce their effects on target tissues by binding to specific proteins called hormone receptors located in the target tissues only.

1 Answer

(C) is the right answer.

Hormones produce their effects on target tissues by binding to specific proteins called hormone receptors located in the target tissues only. Hormone receptors present on the cell membrane of the target cells are called membrane-bound receptors and the receptors present inside the target cell are called intracellular receptors, mostly nuclear receptors (present in the nucleus). Binding of a hormone to its receptor leads to the formation of a hormone-receptor complex (Figure 22.5 a, b). Each receptor is specific to one hormone only and hence receptors are specific. Hormone-Receptor complex formation leads to certain biochemical changes in the target tissue. Target tissue metabolism and hence physiological functions are regulated by hormones
answered Apr 3, 2014 by pady_1
 
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