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MCAT Question A Day - 4/4/13 - Answer!

Phosphoglycerides are

A.  carboxylate esters.
B.  phosphate esters.
C.  carboxylate esters and phosphate esters.
D.  triacylglycerols.

The correct answer is (C). Phosphoglycerides are lipids that are similar to fats but contain
only two acyl groups (R—C⎯⎯O) and a phosphate group in place of the third. The parent
molecule is called diacylglycerol phosphate or phosphatidic acid.