VPY-0091
QUESTION
The hormones are chemically …… or steroid in nature?
OPTIONS
(A) Protein
(B) Fat
(C) Vitaminous
(D) Sterol
ANSWER
(A) Protein
EXPLANATION
Hormones are chemical messengers secreted by endocrine glands and are classified according to their chemical nature into peptide/protein hormones, steroid hormones, and amino acid-derived hormones. Protein and peptide hormones include insulin, glucagon, growth hormone, prolactin, and oxytocin, whereas steroid hormones include cortisol, aldosterone, estrogen, progesterone, and testosterone. Steroid hormones are synthesized from cholesterol, while protein hormones consist of amino acid chains. Therefore, among the given options, (A) Protein correctly completes the statement that hormones are chemically protein or steroid in nature.