Question

According to the accepted concept of hormone
action, if receptor molecules are removed from
target organs, then the target organ will
(a) not respond to the hormone
(b) continue to respond to hormone without any
difference
(c) continue to respond to the hormone but in
the opposite way
(d) continue to respond to the hormone but will
require higher concentration

Answer 1

Answer:

I think B) is a is the correct answer

Answer 2

According to the accepted concept of the hormone  action, if the receptor molecules are removed from  target organs, then the target organ will  (a) not respond to the hormone

• Although hormones are released into the bloodstream and can therefore reach all cells, they only affect those cells that have specific receptors for hormones.
• Binding hormone to receptor is therefore important regardless of the presence of receptors inside or on the cell's surface.
• This makes options B and C wrong as the absence of receptors renders the cell uninfluenced by hormonal action.
• Option D is incorrect as the binding of the hormone-receptor is an essential step in hormonal action.
• Thus, the target organ will no longer respond to hormone, in the absence of receptors and Option A is correct.