NCSU ANS (HS) 215 - 2 (4 pages)

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Pages:
4
School:
North Carolina State University
Course:
Ans (Hs) 215 - Basic Agricultural Genetics
Basic Agricultural Genetics Documents
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Unformatted text preview:

9 Triglycerides are formed by the of three fatty acids to a glycerol molecule a hydrolysis b esterification c glycolysis d oxidation 10 Cholesterol is a precursor of a Vitamin D 11 Sterols are absorbed after fatty acids are hydrolyzed True False 13 Ca is not involved in the blood clotting process True False 15 Which of the following can serve as a side group after the phosphate group on carbon 3 in phospholipids a alanine b choline c lecithin d choline and lecithin 17 The following is the precursor molecule converted by sunlight into vitamin D a pro vitamin D3 b 25 hydroxy vitamin D3 c 7 dehydrocholesterol d 1 25 dihydroxy vitamin D3 20 Delta tocopherol has of the antioxidant activity of alpha tocopherol c 1 d 15 21 Alpha tocopherol has the most antioxidant activity of any form of vitamin E True False 32 Exposing the skin to direct sunlight for minutes times a week can provide for the minimal essential synthesis of vitamin D within the bodies of light skinned peoples a 50 60 minutes 2 times a week b 1 2 minutes once a week c 10 15 minutes 3 4 times a week d 3 hours 5 times a week 33 Which form s of vitamin A directly or indirectly support s growth c retinoic acid d retinal and retinol and retinoic acid 36 Lipase is an enzyme secreted by the a stomach b liver c gallbladder d pancreas 47 Beta tocopherol has of the antioxidant activity of alpha tocopherol a 10 b 20 c 30 d 40 48 Vitamin D does not bind to receptors in the nucleus True False 49 Vitamin E is especially important in stabilizing within the cell a polyunsaturated fatty acids within cellular membranes b cholesterol c DNA d all of the answers are correct 51 During keratomalacia the central cornea can undergo colliquative necrosis True False 52 A common term s used to describe vitamins in biochemistry would be a cofactor b inhibitor c coenzyme d cofactor and coenzyme 54 Vitamin A is distributed throughout the body by RBP which is produced by the a stomach b liver 63 Lipase requires the protein colipase to



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