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Unformatted text preview: ( hexose ) iv. Vary in the configuration (spatial arrangement) of hydroxyl function groups v. Serve as fuel glucose used as a source of chemical energy in production of ATP vi. Sugars do not usually exist in the form of linear chains: In aqueous solution they tend to form ring structures Carbon that is numbered 1 in the linear chain forms a bond with an oxygen atom and with a hydroxyl group that can be oriented in 2 ways II. The Structure of Polysaccharides A. Polysaccharides are polymers that form when monosaccharides are linked together B. Simplest polysaccharides consist of two sugars and are known as disaccharides C. Simple sugar polymerize when a condensation reaction occurs between two hydroxyl groups, resulting in a covalent bond called a glycosidic linkage i. The location and geometry of glycosidic linkages can vary widely among polysaccharides D. Function: energy storage (glycogen, starch) & structural support (cellulose, chitin)...
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- Fall '07