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Pennsylvania State University
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Pennsylvania State University
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NUTRTION 445EXAM 3 - STUDY GUIDE
Know the different categories of lipids important in human nutrition.
1. Fatty acids
2. Triacylglycerols
3. Sterols & Steroids
4. Phospholipids
5. Glycolipids
6. Lipoproteins
Know the basic structures of fatty acids, triacylglycerol, cholesterol and phospholipid. (Be able to recognize them if given a diagram).
Fatty Acid
Triacylglycerol Cholesterol Phospholipid - 1 - What is the difference between cholesterol and a cholesterol ester?
Cholesterol Simple -OH
Cholesterol
Ester Ester bond connected to a fatty acid -- MORE Hydro-
PHOBIC – MORE INSOLUBLE – MORE PACKAGABLE INTO LIPOPROTEINS
Know fatty acid nomenclature (delta and omega system).
1. Delta (∆) system Carboxyl End 2. Omega (ω) system Methyl End
• Chain length of fatty acid • number & position of double bonds present - 2 -
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