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Unformatted text preview: Lecture 5 carbs 1. Fiber 2. Regulation 3. Glycemic index/load 4. Diabetes 5. Artificial sweateners-soluble fiber slows transit time in stomach- fiber in general speeds up transit in LJ Fiber: diverticulitis in LI Buldge of lining is called diverticulosis Lecture 7 Lipids Part II 1. Digestion and transport 2. Fat storage 3. Transfat Lipids and long chain FA are insolubl in water and are difficult to metabolize Body absorbs >= 95% of lipids ingested Most absorption in S.I. CCK-> hormone that stimulates release of bile acids and lecithin from gall bladder and lipase from pancreas-lecithin: emulsify fats (allow them to be soluble in H 2 O) Amphipathic molecules- Cholic acid H Bile Acid- Lecithin a phospholipid Lipid -> (lipas e) F.A. + monoglycerides (All of the: is digestion) |absorbed by S.I. Reforming triglyceride(lipid) |packaged with protein and cholesterol Lipoprotein particles | Secreted to lymph and blood Cholesterol is the precursor for bile acids, hormones (estrogen, etc), Vitamin D....
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- Winter '08