According to the accepted concept of hormone action, if receptor molecules are removed from target organs, then the target organ will
Correct answer: B. Not respond to the hormone
- A. Continue to respond to the hormone without any difference
- B. Not respond to the hormone
- C. Continue to respond to the hormone but will require higher concentration
- D. Continue to respond to the hormone but in the opposite way
Explanation
The molecules of hormones that are amino acid derivatives, peptides or proteins are large and insoluble in lipids, and cannot enter the target cell. Therefore, they act at the cell surface. They bind to specific receptor molecules located on the surface of the cell membrane. Therefore, if receptor molecules are removed from target organs, then the target organ will not respond to the hormone.
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About Coordination and Control
Coordination depends on receptors, neurons, synapses and nerve impulses, with reflex actions traced through the reflex arc and the roles of major brain regions. Chemical coordination covers endocrine glands and hormones, including how hormones regulate growth, metabolism, reproduction and internal balance, unlike rapid nervous control.
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