The rate of metabolism is regulated by:
Correct answer: B. Thyroxine
- A. PTH (Parathyroid Hormone)
- B. Thyroxine
- C. Aldosterone
- D. Calcitonin
Explanation
Thyroxine is the hormone secreted by the thyroid gland that plays a key role in regulating the body's metabolism. It influences how the body converts nutrients into energy and impacts processes such as digestion, heartbeat, and muscle function. PTH, aldosterone, and calcitonin serve different purposes: PTH is important in calcium regulation, aldosterone regulates sodium and potassium balance, and calcitonin helps manage calcium levels, not overall metabolism.
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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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