Exam Review - Chapter 7

In glycoproteins carbonyl carbon can only be oxidized

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Unformatted text preview: or D- enantiomer, downward for L- enantiomer Beta projection: same side as - CH2OH Alpha projection: opposite side as - CH2OH Mutarotation: the α and β anomers of D- glucose interconvert in aqueous solution, in which one ring form opens briefly into linear form and then closes again Hexose derivatives: in which the hydroxyl group of parent compound is replaced with another substituent, or carbon atom is oxidized Aldonic acids: oxidized aldoses O- glycosidic bond: bond that joins covalently two monosaccharides When a hydroxyl group of one sugar molecules, typically cyclic, reacts with the anomeric carbon of the other N- glycosyl bond: joins anomeric carbon of a sugar to nitrogen atom in glycoproteins Carbonyl carbon can only be oxidized when the sugar is in its linear form Reducing end: end of chain with free anomeric carbon Starch: contains two types of glucose polymer, amylose and amylopectin Amylose is unbranched and linear (α14) Amylopectin is branched (α16) occur every 24- 30 residues Glycogen: main storage polysaccharide of animal cells More ext...
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This note was uploaded on 02/06/2014 for the course BCHB 501 taught by Professor Jessicajones,elliottcrooke,ericgalsgow,marybethmartin during the Fall '12 term at Georgetown.

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