LIPIDS Review.docx - 1 Describe the types and structure of...

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1. Describe the types and structure of lipids in the diet. Fatty acids o Differ in length and saturation (double bonds) 1. None=saturated 2. 1=monounsaturated 3. >1=polyunsaturated Triglycerides o 3 fatty acid + glycerol 1. a lot like a carb Phospholipids o 2 Fatty acids + glycerol backbone + phosphate head Sterols o Cholesterol Lipoproteins o Chylomicron o VLDL o LDL o HDL Essential fatty acids o Any fat that has a double bond before 9 th carbon o Omega 3-linolenic o Omega 6-linoleic
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2. Understand how structure of lipids dictate digestibility and function. Fatty acids are part of triglycerides in our food Major storage source of energy bc of all the carbons Phospholipid bilayer in our cells membrane Need to be emulsified  BILE o Bile is synthesized in the liver & stored + released from gallbladder o Breaks up fat into micelles that can be acted on by enzymes Sterols o Cholesterol is used to synthesize other complex hormones Lipoproteins o
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