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Which statement about thyroxine and iodine is most scientific?

Answer and explanation

Correct answer: Iodine deficiency can reduce thyroxine formation and affect the thyroid gland

The governing concept is hormonal control by the endocrine system. Thyroxine is produced by the thyroid gland, and iodine is an essential raw material needed for its synthesis. Therefore, inadequate iodine may reduce thyroxine production and can contribute to thyroid enlargement, called goitre. Option A correctly connects the nutrient, hormone, gland, and possible consequence. Adrenaline is not the only hormone related to iodine, plants do not produce human thyroxine, and a reflex arc belongs to nervous coordination.

Related tags

ThyroxineIodineGoitreEndocrine SystemControl And CoordinationWorld Of LivingScienceClass 10 Mcq

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