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Vitamins (1)

Water Soluble Vitamin Functions

QuestionAnswer
Thiamine, B1 1) Oxidative decarboxylation of keto acids 2) Transketolase
Riboflavin, B2 1) Hydrogen carriers 2) Essential for energy production 3) Essential for maintenance of normal tissues
Niacin, B3 As hydrogen carrier in: glycolysis, pyruvic acid to acetyl CoA, citric acid cycle, respiratory chain, hexose monophosphate shunt, deamination, fatty acid syn., B-oxidation of fatty acids, steroid syn.
Pantothenic Acid, B5 1) Activates acetate 2) Carries 2-C fragments
Pyridoxine, B6 1) Transports NH2 in deamination, transamination and amination 2) Transfers sulfur 3) Functions with decarboxylases
B12 1) DNA synthesis 2) Packaging folate in cells- transport CH3-THF to bone cells 3)Neurologic- B12 deficiency, decrease myelin syn., alteration in sensory & motor nerves, heals slowly 4) Fat and CHO metabolism 5) Protein metabolism 6) As reducing agent
Ascorbic Acid, Vitamin C 1) Hydroxylation reaction 2) Reduces iron 3) Activates folic acid to active form 4) Regulate intracellular ox. and red. potential 5) H transfer system 6) Antioxidant 7) Cholesterol Metabolism
Folacin 1) As carrier of 1-C atom group in nucleic-acid syn. (DNA) 2) Some methylation reactions 3) Interconversions among some amino acids
Created by: nhalasz
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