A) tryosine
B) cholesterol
C) coenzyme-A
D) glycerol
Correct Answer: B
Solution :
Secretory products of endocrine glands are known as hormones. These are the organic compound, secreted in small amount and can inhibit or modify the cellular activities of the body. Chemically, hormones are of three kinds : Steroids : Steroids hormones, are made up of cholesterol, which is a lipid derivative and synthesised by liver cells. These hormones are lipid soluble, that is why, their molecules pass freely through the lipid bilayer of the cell membrane, eg, sex hormones. Peptide hormones are made up of amino acids chain, eg, insulin, prolactin, etc. Amino acid derivatives are smallest hormones, derived from histidine, tryptophan and tyrosine.
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