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CARBOHYDRATES
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Consist of carbon, hydrogen, & oxygen
Energy containing molecules
Some provide structure
Basic building block is a monosaccharide (CH2O)n ; n = 3,5,6
Two monosaccharides form a disaccharide
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Different Forms of Glucose
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Three Monosaccharides
C6H12O6
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Dehydration Synthesis
of a Disaccharide
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Formation of Disaccharides
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Hydrolysis of a Disaccharide
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Important Polysaccharides: Starch
Consists of glucose subunits
Plant energy storage molecule
Glycogen is a very similar molecule in animals.
Starch and glycogen can be digested by animals.
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Important Polysaccharides: Cellulose
Composed of glucose subunits
Different bond formed than starch
Structural component in plants
Cannot be digested by animals
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Important Polysaccharides: Chitin
Glucose subunits
Partly derived from non-sugars (nitrogen)
Composes exoskeletons of insects
Note similarity to cellulose.
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