BIOC 2580 Study Guide - Final Guide: Chemical Energy, Ribose, Chief Operating Officer

• School: University of Guelph
• Department: Biochemistry
• Course: BIOC 2580
• Professor: Enoka Wijekoon

Document Summary

Fatty acids saturated: no double bonds: energy storage, structure of membranes, signal transduction, enzyme cofactors, vitamins, light-absorbing pigments. Common= even # of carbons: made by partial hydrogenation- isomerizes double bonds, higher m. p. than cis. Chain length increases . m. p. increase, solubility decreases. Unsaturated: less energy required to disrupt packing. Hydrophobic- polar carboxylic acids tied up as less polar esters. M. p. depends on length+ degree of saturation. Mixed: 2 or 3 different fatty acids. Glycerophospholipids (phosphoglycerides) simple: same fatty acid in all three positions. C1 and c2 of glycerol esterified to 2 fatty acids ( tail ) while a highly polar/charged group attached through phosphodiester linkage to the third ( head ) Aggregate into bilayers because hydrophobic tails too bulky to pack together tightly together in micelles. Monosaccharides: carbonyl (aldehyde/ketone), hydroxyl: trioses: simplest monosaccharides (aldoses and ketoses) Dashed bonds point away solid wedge in front. Mirror images- differ in configuration at every chiral carbon atom.