Vitamins Flashcards
What is the active form of Riboflavin ( Vit B2)?
FMN- flavin mononucleotide,
FAD- flavin adenine dinucleotide
What is the Active form of niacin ( vitB3) ?
NAD+ - nicotinamide adenine di nucleotide
NADP+ - nicotinamide adenine di nucleotide phosphate
What is the Active form of pantothenic acid ( vit B5) ?
Coenzyme A
Acyl carrier protein
What is the Active form of pyridoxine (Vit B6) ?
PLP- pyridoxal phosphate
What is the Active form of biotin (vit B7) ?
Biocytin- enzyme bound biotin
What is the Active form of folic acid (Vit B9)
THF- tetrahydrofolic acid
What is the Active form of cynocobalamin (Vit B12)
Methyl cobalamin
Deoxyadenosylcobalamin
What is the Active form of ascorbic acid (Vit C)
Ascorbic acid
What sources can you get thiamine- Vit B1 from? And what is it’s daily requirements?
Cereals, meat, nuts, green vegetables, eggs
1.0-1.5 mg
What sources can you get riboflavin- Vit B2 from? And what is it’s daily requirements?
Yeast, germinating seeds, green leafy vegetables, milk, eggs, liver, meat
1.3-1.7 mg
What sources can you get niacin - Vit B3 from? And what is it’s daily requirements?
Yeast, legumes, liver, meat
15-20 mg
What sources can you get pantothenic acid- Vit B5 from? And what is it’s daily requirements?
Wheat germs, yeast, cereal , liver, eggs
5-10 mg
What sources can you get pyridoxine - Vit B6 from? And what is it’s daily requirements?
Yeast, unrefined cereals, pulses, vegetables, meat, fish, egg yolk
1.6-2.0 mg
What sources can you get biotin - Vit B7 from? And what is it’s daily requirements?
Liver, kidney, egg yolk, vegetables
150-300 micro g
What sources can you get folic acid - Vit B9 from? And what is it’s daily requirements?
Green leafy vegetables, liver, yeast
200 micro g
What sources can you get cynocobalamin- Vit B12 from? And what is it’s daily requirements?
Only animal origin: meat, eggs, liver, fish
3 micro g
What sources can you get ascorbic acid - Vit C from? And what is it’s daily requirements?
Citrus fruits, Amla, leafy vegetables, tomato
60-70 mg
What are the functions and deficiency manifestations of thiamine- Vit B1?
Oxidative decarboxylation and transketolase reactions
Beriberi - dry (neuritic), wet (cardiac), infantile
Wernicke korsakoff syndrome
What are the functions and deficiency manifestations of riboflavin - Vit B2
Coenzyme for oxidation reduction reactions
Cheilosis- fissures at the angles of mouth
glossitis- swollen, magenta tongue
dermatitis- rough, scaly skin
vascularisation of cornea
What are the functions and deficiency manifestations of niacin- Vit B3
Coenzyme for ox-red reactions
Pellagra- dermatitis, diarrhoea, dementia, death
What are the functions and deficiency manifestations of pantothenic acid- Vit B5?
Acyl carrier
No clear cut case- Burning feet syndrome in war prisoners Abnormal tingling sensation Headache Dizziness GI Malfunctiom
What are the functions and deficiency manifestations of pyridoxine- Vit B6?
Coenzyme for decarboxylation, transamination, non oxidative deamination, trans- sulfuration reactions
Epileptic convulsions, dermatitis, hypochromic microcytic anaemia
What are the functions and deficiency manifestations of biotin- Vit B7?
Coenzyme for carboxylation reactions
Rare dermatitis
What are the functions and deficiency manifestations of folic acid- Vit B9?
Carrier of one carbon unit eg. : CH3, CH2, CH, CHO, CH=NH
Synthesis if methionine, purines, pyrimidines
Megaloblastic anaemia, neural tube defects
