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According to the accepted concept of hormone action, if receptor molecules are removed from target organs, then the target organ will

1. not respond to the hormone
2. continue to respond to hormone without any difference
3. continue to respond to the hormone but in the opposite way
4. require higher concentration of hormone

Correct answer: not respond to the hormone

Solution

Hormones act by binding specific receptors on or in target cells. If those receptors are removed, the hormone has no way to trigger a cellular response, so the target organ will not respond.

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