Questions: What element is necessary for the production of triiodothyronine (T3) and thyroxine (T4)?
calcium
potassium
iodine
magnesium
Transcript text: What element is necessary for the production of triiodothyronine $\left(T_{3}\right)$ and thyroxine $\left(T_{4}\right)$ ?
calcium
potassium
iodine
magnesium
Solution
The answer is the third one: iodine.
Explanation for each option:
Calcium: This element is important for bone health and various cellular functions, but it is not involved in the production of thyroid hormones like triiodothyronine (T3) and thyroxine (T4).
Potassium: This element is crucial for nerve function and muscle contraction, but it does not play a role in the synthesis of T3 and T4.
Iodine: This is the correct answer. Iodine is an essential component of both triiodothyronine (T3) and thyroxine (T4). The thyroid gland uses iodine to produce these hormones, which are critical for regulating metabolism.
Magnesium: This element is important for many biochemical reactions in the body, but it is not directly involved in the production of thyroid hormones.
In summary, iodine is necessary for the production of triiodothyronine (T3) and thyroxine (T4).