Goiter is caused by a deficiency of
Correct answer: C. Iodine in water
- A. Sodium in water
- B. Calcium in water
- C. Iodine in water
- D. Sugar in water
Explanation
Goiter is caused by an iodine deficiency, which is vital for the production of thyroid hormones. The thyroid gland enlarges in an attempt to capture more iodine from the bloodstream. Iodine is found in various food sources, including iodized salt, seafood, and certain types of seaweed. Sodium, calcium, and sugar do not directly affect thyroid hormone production and are not related to the development of goiter.
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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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