Question

Histamine structure is represented by:

• A. \( \text{3,4-Dihydroxyphenethylamine} \)
• B. \( \text{2-(1-H-Imidazol-5-yl)ethanamine} \)
• C. \( \text{2-(1-H-Imidazol-4-yl)ethanamine} \)
• D. \( \text{2-Amino-3-(1H-imidazol-4-yl) propanoic acid} \)

Hint:

Histamine plays a critical role in immune responses and regulates physiological functions, including gastric acid secretion.

Answer 1

The Correct Option is C

Histamine is a biologically active amine involved in allergic reactions and neurotransmission. Its molecular structure consists of an imidazole ring connected to an ethylamine group. The correct representation is \( 2-(1-H-Imidazol-4-yl)ethanamine \), distinguishing it from similar bioactive amines.