ExtraCreditHomework6Key - Name: EID: Extra Credit Homework...

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Name: EID: Extra Credit Homework #6 KEY Complete questions below and hand in to a TA by the end of class on Friday, Oct 14. 1. a) Draw the structures of 1- oleoyl -2- stearoyl -glycero-3 -phosphocholine and 1- linoleoyl -2- linoleoyl -3- palmitoleoyl glycerol. O O O O O O
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b) Which is better suited to be a component of the lipid bilayer? Why? 1-oleoyl-2-stearoyl-glycero-3-phosphocholine, due the presence of a head group that associates with water and hydrophobic fatty acid tails that associate with neighboring lipids. 2. What are the advantages of your body storing energy in triacylglycerols? 1) More energy is stored in triglycerides than other energy molecules like sugars. 2) Since triacylglycerols are hydrophobic, you don’t have the extra mass from waters of hydration that you have in sugar-based storage compounds. 3. By mass, human adipose tissue is composed of ~80% triacylglycerols, which are built from glycerol and the fatty acids below. a) If you had 5 lb. (2.26 kg) of adipose tissue surgically removed via liposuction approximately how much energy stored as triglycerides would you have lost in kJ? First of all, you have to account for 80% of the composition of adipose tissue being
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This note was uploaded on 02/06/2012 for the course BIOCHEMIST 339K taught by Professor Keating-clay during the Spring '11 term at University of Texas at Austin.

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ExtraCreditHomework6Key - Name: EID: Extra Credit Homework...

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