NUTR 3210 Lecture Notes - Lecture 1: Phosphatidylethanolamine, Phosphatidylinositol, Phosphatidylcholine
Document Summary
Lipid quick facts: soluble in organic solvents e. g ether. Insoluble in polar solvents e. g water: wide variety of structures and functions, sources of energy and storage, building blocks of biological membranes (cellular, nuclear, mitochondria membranes) can distrupt membrane function e. g lipid rafts. Molecule with hydrophilic ad hydrophobic parts, can disrupt cell membranes. Omega system (w): numbering starts from methyl end of fatty acid. Good system: only have to know where 1st double bond is any how many double bonds there are. We know there are 3 carbons b/w each bond in a fatty acid. Delta system: numbering starts from carboxyl end of fatty acid. Poor system: location of the double bond change as a fatty acid chains are elongated b/c carbons are added at the carboxyl end. 2: polyunsaturated: have more than 2 double bonds, very kinky increases fluidity of membranes, cis: same side double bond trans: opposite side double bond.
