Carbohydrates - Carbohydrates: (contain carbon, hydrogen,...

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Carbohydrates : (contain carbon, hydrogen, and oxygen atoms) Monosaccharides : simple sugars with a backbone of 3 to 7 carbon atoms - Glucose is a 6-carbon sugar ( hex ose) found in the blood of animals, and Fructose is a hexose found in fruits - Ribose is a 5-carbon sugar ( pent ose) found in RNA (in DNA , the pentose sugar is deoxy ribose) Disaccharides : 2 monosaccharides joined by condensation - Maltose (a disaccharide in the digestive tract) = glucose + glucose - Lactose ( a disaccharide in milk) = glucose + galactose (another hexose) - Sucrose (a disaccharide in fruits & vegetables) = glucose + fructose Polysaccharides : 1. Glycogen is a highly branched polymer of glucose , and is the storage form of carbohydrates in animal cells (stored in liver cells) 2. Starch is a more moderately branched polymer of glucose , and is the storage form of carbohydrates in plant cells 3. Cellulose is an unbranched polymer of glucose , with adjacent chains held together by hydrogen bonds, giving it a very rigid structure. It is the major structural component of
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Carbohydrates - Carbohydrates: (contain carbon, hydrogen,...

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