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BRT535_L13_02_24_11

BRT535_L13_02_24_11 - Plant Chemistry Fundamentals...

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Plant Chemistry Fundamentals
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Carbohydrates Carbohydrates - polyhydroxy aldehydes, polhydroxy ketones, or compounds that can be hydrolyzed from them – Designated with the suffix “ose” – Range in size from molecules containing three carbon atoms to gigantic molecules containing thousands of carbon atoms Monosaccharides – carbohydrates that cannot by hydrolyzed to smaller units
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Carbohydrates Oligosaccharides - carbohydrates consisting of a few monosaccharides Polysaccharides – carbohydrates consisting of thousands of covalently linked monosaccharides Homopolysaccharides - polysaccharides containing only one kind of monosaccharide – Starch and cellulose are examples
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Monosaccharides Monosaccharides are classified according to their most highly oxidized functional group – Aldoses contain a single aldehyde group – Ketoses contain a single ketone group C C C CH 2 OH C CH 2 OH O H O H OH H OH H C C C CHO C CH 2 OH H O H OH H OH H OH H D-fructose (an aldohexose) (a ketohexose) D-glucose
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