Turkey - Wednesday 22 November 2006 Lets Talk Turkey...

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Unformatted text preview: Wednesday 22 November 2006 Lets Talk Turkey Protein FAT Sugar FAT Starch FAT Carbohydrates Starch FAT Sugar 4 Biological Systems (eg. life) encompass several different classes of molecules Carbohydrates / Sugars Fats / Lipids Amino Acids / Proteins Heterocyclic Bases (DNA) Biomolecules 5 Carbohydrates - Chapter 25 Carbohydrates - or Sugars are highly oxygenated organic molecules. They usually contain as many oxygens as carbon atoms. Key intermediates for Metabolism Polysaccharides are structural components of plants (cellulose) 6 Sugar Structure Glucose OH H H HO OH H OH H CH 2 OH O H HO H HO H H OH H OH OH O H 7 Polysaccharides Sugars can be linked by the acetal group A disaccharide Cellulose contains several thousand sugar units O H HO H HO H H OH H OH O H O H HO H H OH H OH OH 8 Disaccharides Maltose - (glucose-glucose) O HO HO OH OH O O HO OH OH OH 9 Disaccharides Cellobiose - cannot digest this O HO HO OH OH O O HO OH OH OH O HO HO OH OH O O HO OH OH OH Maltose Cellobiose 10 Disaccharides Lactose - (galactose-glucose) O HO HO OH OH O O HO OH OH OH Lactose 11 Disaccharides Sucrose - Table Sugar - (glucose-fructose) O HO HO OH OH Sucrose O HO OH O OH OH 12 Non-caloric sweeteners Sucralose O Cl HO OH OH Sucralose O HO OH O Cl Cl O HO HO OH OH Sucrose O HO OH O OH OH 13...
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Turkey - Wednesday 22 November 2006 Lets Talk Turkey...

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