JEE Main Chemistry question

Which one of the following is a peptide hormone?

(A)Thyroxine
(B)Adrenaline
(C)GlucagonCorrect
(D)Testosterone

Answer: (C)

Solution

Glucagon is a 29-residue polypeptide hormone secreted by the pancreatic α-cells that raises blood glucose by stimulating glycogenolysis, making it the genuine peptide hormone among these options. Thyroxine is an iodinated, tyrosine-derived amino-acid hormone, not a multi-residue peptide; adrenaline is a catecholamine

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Question ID VK-150925