Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
(A) A triacylglycerol (TAG) (B) a phospholipid, and (C) a sphingolipid. R, R1, and R2 are alkyl or alkenyl groups attached to ester carbonyls. X1: H, ethanolamine, choline, serine, glycerol, or phosphatidylcholine functional groups. X2: H, phosphocholine, glucose, or oligosaccharide functional groups.
