Question

The molecular structure of thyroxine is made up of____________

• A. 2 iodine molecules along with T3
• B. 4 iodine molecules along with T3
• C. 3 iodine molecules along with T3
• D. 1 iodine molecule along with T3

Answer 1

The correct option is B 4 iodine molecules along with T3

• One of the most important thyroid hormones is thyroxine or T4. Four iodine molecules are attached to the molecular structure of thyroxine.
• Along with the other thyroid hormone (triiodothyronine or T3), thyroxine affects almost every process in the body, including body temperature, growth, heart rate etc.

Therefore, the correct answer is option B.