Exam 4 Key - Page 1 of 5 Name: _ EXAM IV NTR 326 Fall 2009...

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Page 1 of 5 Name: ___________________________ EXAM IV NTR 326 Fall 2009 1. Match the description on the right with the correct fatty acid on the left. _ D ___ Palmitic acid A. 18:1 (Δ 9 ) (n-9) __ E __ Arachidonic acid B. 18:3 (Δ 9,12,15 ) (n-3) _ A ___ Oleic acid C. 18:2 (Δ 9,12 ) (n-6) _ F ___ Docosahexaenoic acid D. 16:0 _ B ___ α-linolenic acid E. 20:4 (Δ 5,8,11,14 ) (n-6) _ C ___ Linoleic acid F. 22:6 (Δ 4,7,10,13,16,19 ) (n-3) 2. Which is not a part of a fatty acid? a. Hydrocarbon chain c. nitrogen group b. Carboxyl group d. methyl group 3. How is a phospholipid different from a triglyceride? a. Glycerol backbone c. number of double bonds b. Polar Head group d. size of fatty acids 4. Which amino acid is used in methylation reactions? a. tyrosine c. cysteine b. methionine d. arginine 5. What is typically found between two double bonds in a fatty acid? a. Methylene group c. carboxyl group b. Methyl group d. none of the above 6. Which is not a product of tryptophan metabolism? a. serotonin c. epinephrine b. NAD d. acetyl-CoA 7. What must occur for lipids to be efficiently digested? a. Emulsification c. all of the above b. Sonication d. none of the above 8. What is the major compound used getting lipids into the aqueous phase in digestion?
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Exam 4 Key - Page 1 of 5 Name: _ EXAM IV NTR 326 Fall 2009...

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