Final answer:
Iodine is essential for the synthesis of thyroid hormones, specifically thyroxine (T4) and triiodothyronine (T3). The thyroid gland takes up iodine ions and converts them into active iodine with the help of the enzyme thyroperoxidase. This active iodine is used in the synthesis of the thyroid hormones.
Step-by-step explanation:
Iodine is essential for the synthesis of thyroid hormones. The thyroid gland produces two main hormones, thyroxine (T4) and triiodothyronine (T3), which are involved in cellular oxidation, growth, reproduction, and the activity of the central and autonomic nervous systems. Iodine is required for the formation of these thyroid hormones. Specifically, iodine ions (I-) are taken up by the thyroid gland and converted to active iodine (I or I+) with the help of the enzyme thyroperoxidase. This active iodine is then used in the synthesis of the thyroid hormones.