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Defintion of lipids:
hydrophobic small molecules
slightly soluble in organic solvent (e.g. chloroform or methyl alcohol)
adipocytes
a) b)
a) guinea pigb) arabidopsis(Lehninger Principles of Biochemistry, Fourth Edition - David L. Nelson, Michael M. Cox, p.346)
micelle bilayerliposome
(Lehninger Principles of Biochemistry, Fourth Edition - David L. Nelson, Michael M. Cox, p.372)
Membran lipids
Phospholipids: Glycerophospholipids, Sphingolipids
Glycolipids: Sphingolipids, Galactolipids
Phospholipids
Glycerophospholipids
Gly
cero
l Fatty acid
Fatty acidPO4 Alcohol
Sphingolipids
Sphi
ngos
ine
Fatty acid
PO4 Choline
Glycolipids
Sphingolipids Galactolipids
Gly
cero
lFatty acidFatty acidFatty acid
Sphi
ngos
ine
Mono- oroligosaccharide
Mono- oroligosaccharide (SO4)