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7 Cards in this Set
- Front
- Back
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Thiamin |
Role/Fx: Coenzyme in Carbohydrate metabolism, (pyruvate-->AcetylCoA) Absorption:? Deficiency: Accumulation of lactic acid and pyruvate. Beriberi Toxicity: Rare, only in megadoses or excess IV Other Factors:? |
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Riboflavin |
Role/Fx: =FAD, participates in Reduction/Oxidation reactions (ex. FAD-->FADH2 to ETC) Absorption: Duodenum. Animal sources better bioavailability Deficiency: Photophobia, tearing, itchy eyes. Cheilosis, inflammation of mouth Toxicity: ? Other Factors: |
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Niacin |
Role/Fx: =NAD, *most important electron carrier in all cells Absorption: Deficiency: Pellagra(dementia, diarrhea, dermatitis) Toxicity: Other Factors: Can be synthesized by AA tryptophan, but requires riboflavin |
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Pantothenic Acid |
Role/Fx: =CoA, fatty acid oxidation, fatty acid synthesis Absorption: Jejunum Deficiency: Very Rare, P.A. is in nearly all food Toxicity: Other Factors: carrier protein, required for synthesis of neurotransmitter ACh |
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Folic Acid |
Role/Fx: coenzyme in A.A.'s. Donates or accepts single carbon units, helps processing of byproducts(homocysteine) Absorption: Jejunum Deficiency: Spina Bifida or Neural tube defects, megaloblastic anemia(unable to divide) Toxicity: Other Factors: |
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Vitamin B12 |
Role/Fx:Absorption:Deficiency:Toxicity:Other Factors: |
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Pyrodoxine |
Role/Fx:Absorption:Deficiency:Toxicity:Other Factors: |
