BIOL 203 Lecture Notes - Lecture 4: Chylomicron, Micelle, Emulsion
21 Jun 2015
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Document Summary
Lipids are good for: absorption vitamins, satiety, and visceral fat to cushion body, subcutaneous fat to be warm, protect injury, and maintain cells, energy that can be stored. Chains of c and h with omega (methyl) and alpha (carboxyl end) Different shape and length have even number of c. Shape saturated if no double bounds, saturated is solid. Omega 3 double bound is on 3 c after methyl can"t be made as omega 6. Omega 3 in fish dha (for brain) and epa (for heart disease) Straight unsaturated is trans-fat (h are on opposite side of double bound bad) Polyunsaturated turns rancid when deep fried free radicals. Are triglycerides + phosphor/nitrogen are polar so soluble. Make cell membrane lipid bilayer there is cholesterol in layer too. No energy, found in animal food, we make it helps hormones, vitamin d, bile, membrane. Mouth warms fat, stomach digest little, it emulsify with biles in liver, mostly in small intestine.
