BCH 2333 Lecture Notes - Lecture 6: Reducing Sugar, Aldohexose, Hemiacetal

• School: University of Ottawa
• Department: Biochemistry
• Course: BCH 2333
• Professor: Matthew Lafreniere

Document Summary

If a ketone is present in the ring = named a ketose. How do we visualize monosaccharides: (1) epimers two isomers with different configuration around an asymmetric carbon. C2 configuration is used to distinguish between the members in a class of monosaccharides (2) d/l forms of a chiral compound. Enantiomers (3) fisher projections c1 carbon placed at the top, substituents on the left and right of the main chain atom. Sugar in linear form put flat on the page (like the epimers drawing (4) haworth projections standard way to draw structural forms of carbohydrates. Primary source of energy in the cell d-glucose, oh on the right. Tends to like the equatorial conformation because of bulky groups. Helps indicate if we have a glycosidic bond or not. Monosaccharides bind together to for more efficient energy storage. Glycogen is an energy source -electron transfer-> glucose 1 phosphate --> glucose-6-phosphate --> glycolysis --> atp.