An unknown lipid is treated with a mixture of phospholipases A₁, A₂, C and D. Since no glycerol is formed after this treatment, the lipid is most likely A) phosphatidylethanolamine. B) phosphatidylcholine. C) plasmologen. D) ceramide. E) A mixture of A and B

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Quizplus · Accepted Answer

Ceramide is a type of sphingolipid, which does not contain glycerol. Phospholipases target glycerophospholipids, which contain glycerol, so the absence of glycerol indicates the lipid is not a glycerophospholipid.

An Unknown Lipid Is Treated with a Mixture of Phospholipases