What does amphipathic mean with lipids?
have both hydrophobic and hydrophilic character
What do most lipids contain?
fatty acid chains that have a carboxylic acid followed by long hydrocarbon chains
List the popular fatty acid chains and the ratios of saturation (there’s 5)
Stearic acid- 18:0
Oleic acid- 18:1
Linoleic acid- 18:2
alpha-linoleic acid- 18:3
palmitic acid: 16:0
How does the melting point change with mass and degree of unsaturation
melting point INCREASE with mass and DECREASE with degree of unsaturation (meaning that stearic acid has a higher MP than linoleic acid
What are triglycerides?
non polar, basis for storage fat in animal tissues
three hydroxyl groups on glycerol connected to fatty acids by ester linkages
What are phospholipids?
based on G3P, amphiathic
What are sphingolipids built around?
an alcohol called sphingosine
amide linkage
What are sphingomyelins?
sphingolipid that is ceramide plus phosphocholine/phosphoethanolamine head group
What are cerebrosides and gangliosides?
Cerebrosides is ceramide and one sugar residue
Gangliosides are most complex sphingolipids
