CHM361H5 Lecture Notes - Lecture 22: Terpene, Monoterpene, Phosphatidylethanolamine
Document Summary
Amphipathic (one side is polar and the other is non-polar or uncharged) Look at the storage form and structural form. Have a hydrophobic tail and a hydrophilic head (carboxyl) Carboxyl will be ionized in physiological conditions (-ve charged) When placed in an aqueous solution, they would like to pack together and increase entropy (decrease the orderliness of water) Rapid rotation around the c-c bonds and adopt the trans conformation and staggered. Gauche interaction is when the dihedral angles between two substituent groups is more than 0o and less than 120o. C=c bonds separated by at least 1 ch2 (methylene) unit. Between the two c=c bonds, there is a space of one methyl group. C=c bonds most often in cis configuration. The bends in the fatty acid chain. This prevents the chains from getting too close to each other due to the kinks. Cis c=c bonds prevent close, rigid packing that is seen in saturated fatty acids.
