<prompt> All of the following are derived from glycerol 3 phosphate, EXCEPT:PhosphatidylcholinePhosphatidylethanolaminephosphatidylinositoNone of the above  <response>: Impoant substances such as triacylglycerols, phosphatidylcholine, phosphatidylethanolamine, phosphatidylinositol, and cardiolipin, a constituent of mitochondrial membranes, are formed from glycerol-3-phosphate. Ref: Harper 28th edition, Chapter 24. 