What Alcohol Containing a Quaternary Amine is Commonly Found Esterified

Question

What alcohol containing a quaternary amine is commonly found esterified to glycerophospholipids?
A)ethanolamine
B)choline
C)serine
D)inositol
E)cholesterol

Accepted Answer

Choline is commonly found esterified to glycerophospholipids, such as phosphatidylcholine. Choline is a quaternary amine that contains an alcohol group, making it suitable for esterification with glycerol. Ethanolamine, serine, and inositol are also quaternary amines, but they are not as commonly found esterified to glycerophospholipids. Cholesterol is a steroid and does not contain a quaternary amine.