Human Nutrition - Ch 4 Simple carbs includes...

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Ch. 4 h Simple carbs: includes monosaccharides and disaccharides such as glucose, fructose and galactose h Complex carbs: they are called polysaccharides such as glycogen, starches and dietary fiber h Monosaccharide: Glucose (blood sugar), Fructose (fruit sugar), Galactose (bound with glucose to form milk sugar lactose). h Disaccharides: Maltose(alcohol)=glucose+glucose. Sucrose(table sugar)=glucose+fructose. Lactose=galactose+glucose. h Polysaccharides: Glycogen (storage form of starch in liver and muscle), Starch (Amylose—straight chain polymer; Amylopectin—highly branched) h Dietary Fiber: undigested plant food. Body cannot break bonds. Insoluble fiber: indigestible and does not dissolve in water Soluble fiber: Indigestible but dissolves in water. h Carb digestion and absorption In mouth—salivary amylase In stomach—hydrolyze starch Absorption primarily takes place in small intestine Glucose and galactose has active absorption Fructose has facilitated diffusion.
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