Biochemistry 2280A Chapter Notes - Chapter 7: Anomer, Fischer Projection, Triode

• School: Western University
• Department: Biochemistry
• Course: Biochemistry 2280A
• Professor: Christopher John Brandl

Document Summary

Monosaccharides are the simplest sugars with molecular formula (ch2o)n, where n=3-7. Triode is monosaccharide with 3 carbon atoms, tetrose has 4 c, pentose has 5c, hexose has 6c, heptose has 7c. Monosaccharides are drawn using fischer projections the horizontal bonds come out of the page, towards you and the vertical bonds go into the page. Monosaccharide are counted by the number of carbon bonds starting from the side closest to the carbonyl group. Monosaccharide are either d or l based on the orientation of the oh on the chiral carbon farthest from the carbonyl group. Sugars are usually d isomers and the oh group is usually on the right side of the fischer projection. Pentoses and hexoses are usually found in ring or cyclic structure. For a sugar to form a ring structure the hydroxyl group reacts with carbon on carbonyl group, this carbon is called anomeric carbon.