Biology PYQ 128 of 227 · Endocrine System & Hormones

The malfunctioning of thyroid gland is due to the deficiency of

  1. Avitamin A
  2. Bcalcium
  3. Ciodine
  4. Diron
  5. ENone of the above / More than one of the above

66th BPSC

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Correct answer: (c) iodine

Explanation

The thyroid gland needs iodine to synthesise the hormone thyroxine; its deficiency impairs thyroid function.

Iodine deficiency leads to goitre (enlargement of the thyroid), which is why iodised salt is recommended.

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