ANSC 3120 Lecture Notes - Oxaloacetic Acid, Mammary Gland, Malic Acid

• School: University of Guelph
• Department: Animal Science
• Course: ANSC 3120
• Professor: c

Document Summary

6 co2 + 6 h2o c6h12o6 + 6 o2: photosynthesis, c6h12o6 is the start of most life on earth. Average north american consumes ~ 50% of energy from cho. 2 monosaccharides bound covalently: starches & fibres. Polysaccharides: up to hundreds or thousands of sugar units. Monosaccharides: triose: 3 c cells, metabolites of glucose, tetrose: 4 c cells, metabolites of glucose, pentose: 5 c cells, component of dna and rna, hexose: 6 c nutritionally most important. One class of stereoisomers: same molecular formula and sequence, differ in 3d orientation, only occurs at chiral carbons" which have 4 different side chains. Open chain: fisher projection, not normal" in solution. Expensive to extract; ~ 50% fructose and ~ 50% glucose will have a similar sweetness and it is cheaper to produce than sucrose: high fructose corn syrup. Polysaccharides: 3 6 sugars are also known as oligosaccharides, greater than 6 sugars are polysaccharides, starch. Amylopectin: -1, 4 & -1, 6 (branched)