Question

Which one of the following is an amine hormone?

• A. Thyroxin
• B. Oxypurin
• C. Insulin
• D. progesterone

Answer 1

The Correct Option is A

The question asks us to identify which one of the given options is an amine hormone. Let's analyze each option to determine the correct answer by understanding what amine hormones are.

Amine hormones are derived from amino acids such as tyrosine and tryptophan. These hormones include molecules like epinephrine, norepinephrine, melatonin, and thyroxine. They typically have a small molecular size compared to peptide or protein hormones.

1. Thyroxin (Thyroxine): It is an amine hormone derived from the amino acid tyrosine, produced by the thyroid gland. Thyroxin is included in the category of amine hormones as it is synthesized from amino acids.
2. Oxypurin: This is not a standard term for any recognized hormone. It seems to be a distractor in this list.
3. Insulin: It is a protein hormone, not an amine hormone. It is composed of amino acids but is not derived directly like amine hormones; instead, it is synthesized as a chain of amino acids.
4. Progesterone: This is a steroid hormone derived from cholesterol and not from amino acids, which excludes it from the category of amine hormones.

Based on the above analysis, the correct answer is Thyroxin, as it is an amine hormone derived from the amino acid tyrosine.

Therefore, the correct answer is Thyroxin.