Question

Which of the following gland needs tyrosine residue to synthesize their hormone?

• A. Thyroid gland
• B. Pancreas gland
• C. Ovaries
• D. Both A and B

Answer 1

The correct option is A Thyroid gland

Thyroid gland is an endocrine gland. It synthesizes hormones like T${}_3$ (triiodothyronine) and T${}_4$ (thyroxine). It basically regulates metabolism of the body. The thyroid gland requires residue of amino acid tyrosine to synthesize these hormones. The iodination of tyrosine molecules and the combination of two iodinated tyrosine residues produces T${}_3$ and T${}_4$ hormones.

Thus, the correct answer is 'Thyroid gland.'