Chapter 13 - Water-Soluble Vitamins

Neural tube defects 44 vitamin b 12 a cobalamin

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43) Neural Tube Defects
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44) Vitamin B-12 a) Cobalamin (contains cobalt) b) 2 active coenzymes: i) Methylcobalamin ii) 5-deoxyadenosylcobalamin 45) Vitamin B-12 in Foods a) Vitamin B-12 is synthesized by bacteria: i) Animals acquire B-12 from soil ii) Ruminants can synthesize B-12 in stomach compartments iii) Plants do NOT synthesize vitamin B-12 b) Human nutrition: i) All B-12 from animal foods ii) Fermented foods may contain small amounts of B-12 analogs
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  • Fall '08
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  • Exam4, Vitamin, upper limit, daily value, vitamin B-12, water-soluble vitamins, upper level, Nutr250

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