Carbohydrates

Carbohydrates - Outline of Sugar Types Found in Cells -...

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©1998 by Alberts, Bray, Johnson, Lewis, Raff, Roberts, Walter . http://www.essentialcellbiology.com Outline of Sugar Types Found in Cells - Part 1 Monosaccharides usually have the general formula (CH 2 O) n , where n can be 3, 4, 5, 6, 7, or 8, and have two or more hydroxyl groups. They either contain an aldehyde group ( ) and are called aldoses or a ketone group ( ) and are called ketoses. MONOSACCHARIDES Note that each carbon atom has a number. Many monosaccharides differ only in the spatial arrangement of atoms—that is, they are isomers . For example, glucose, galactose, and mannose have the same formula (C 6 H 12 O 6 ) but differ in the arrangement of groups around one or two carbon atoms. These small differences make only minor changes in the chemical properties of the sugars. But they are recognized by enzymes and other proteins and therefore can have important biological effects. RING FORMATION
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Carbohydrates - Outline of Sugar Types Found in Cells -...

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