Vitamins Flashcards
1
Q
B1 is a cofactor for:
A
ATP
A = alpha-ketoglutarate dehydrogenase (a-ketoglut to succinyl CoA)
T = transketolase (ribulose-5-P to F-6-P)
P = pyruvate dehydrogenase (pyruvate to acetyl CoA)
2
Q
B2 is related to:
A
riboFlavin
- FAD, FMN
3
Q
B3 is related to:
A
Niacin
- NAD+, NADP+
4
Q
B5 is related to:
A
PENTOthenic acid
- coenzyme A
- fatty acid synthase
5
Q
B6 is related:
A
PLP
- transamination (ALT/AST)
- decarboxylation
- glycogen phosphorylase
- Synthesis of: cystathione (cystein), heme, niacin, histamine, 5HT, epi, NE, DA, GABA
6
Q
B7 is a cofactor for:
A
Carboxylation enzymes (to add 1 carbon)
- Pyruvate carboxylase (pyruvate to OAA)
- Acetyl-CoA carboxylase (acetyl-CoA to malonyl CoA)
- Propionyl-CoA carboylase (propionyl-CoA to methylmalonyl CoA)
Note: Avidin in egg whites can lead to biotin def.
7
Q
B9 is a cofactor for:
A
THF
- For making DNA and RNA bases
8
Q
B12 is a cofactor for:
A
- methionine synthase
- methylmalonyl-CoA mutase (methylmalonyl-CoA to succinyl-CoA)
9
Q
Vit C is a cofactor for:
A
Hydroxylation
- Proline and lysine for collagen
- DA B-hydroxylation (DA to NE)