BIO SCI 98 Lecture Notes - Lecture 12: Isoprene, Starch, Monosaccharide
2 Aug 2018
School
Department
Course
Professor
Document Summary
Carbs as information molecules: 7. 4: monosaccharides can be assembled into variety of oligosaccharides w/ different stereochemistry and position of glyosidic bonds, more information dense than nucleic acids or proteins. Lectins, proteins w/ highly specific carb-binding domains are found on the outer surface of cells where they interact with other cells. Structure is dependent on: specific enzymatic hydrolysis to determine stereochemistry and produce smaller fragments for further analysis, methylation analysis to located glyosidic bonds, stepwise degradation to determine sequence and configuration of anomeric carbons. Storage lipids - 10. 1: water-insoluble (non-polar - endergonic) cellular components that can extracted by non-polar solvent"s. Fatty acids and hydrocarbon components have even number of carbons: saturated or unsaturated in cis configuration, triacylglycerol"s contain 3-fatty acid molecules esterified to the 3 hydroxyl groups of glycerol, present as primary storage fats and in many foods. Structural lipids in membranes - 10. 2: polar lipids (with polar heads [electric charge near ph 7] and non-polar [hydrophobic] tails are.
