Which of the following hormones contains iodine?

The hormone that contains iodine is [A] Thyroxine. Thyroxine, also known as T4, is a thyroid hormone produced by the thyroid gland. It plays a vital role in regulating metabolism, growth, and development throughout the body. Thyroxine molecules consist of four iodine atoms, making iodine an essential component of its structure.

Iodine is crucial for the synthesis of thyroid hormones. The thyroid gland actively absorbs iodine from the bloodstream and incorporates it into thyroxine molecules through a series of enzymatic reactions. Without sufficient iodine intake, the thyroid gland cannot produce an adequate amount of thyroxine, leading to hypothyroidism and associated symptoms such as fatigue, weight gain, and impaired metabolism.

Therefore, iodine is essential for the synthesis of thyroxine, highlighting the importance of dietary iodine intake for maintaining proper thyroid function and overall health.