These hormones perform antagonistic function EXCEPT:
Correct answer: C. Adrenaline - Noradrenaline
- A. Growth Hormone - Somatostatin
- B. Calcitonin - Parathyroid
- C. Adrenaline - Noradrenaline
- D. Insulin - Glucagon
Explanation
A is incorrect because somatostatin inhibits the release of growth hormone from the pituitary gland. B is incorrect because calcitonin decreases blood Ca2+ levels while parathormone increases blood calcium levels. D is incorrect because insulin decreased blood glucose concentration and glucagon raises blood glucose concentration. Adrenaline and noradrenaline are both involved in the fight or flight response during times of emergency. Hence, they are not antagonistic.
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About Chemical Coordination and Hormones
Chemical coordination uses hormones released by endocrine glands and carried in blood to specific target cells. Coverage includes the pituitary, thyroid, pancreas, adrenal glands, ovaries and testes, feedback control, and the contrast between slower, longer-lasting hormonal responses and rapid nervous coordination.
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