Vitamins and their functions

Vitamins and their functions

Sl. No.

Vitamins Co-enzyme form Reactions involving co-enzymes

1

Thiamine (B1) Thiamin pyrosulphate decarboxylation and some group transfer reactions .

2

Riboflavin (B2­) FAD, FMN some dehydration reactions electron transport.

3

Pyridoxine (B6) pyridoxal phosphate Amino acids metabolism transmination, Demination

4

Nicotinamide NAD, NADP Dehydrogenation ractions

5

Pantathonic acid Co-enzyme A Keto and oxidation for and

6

Biotin Biotin CO2 fixation, carboxyl transfer

7

Folic Acid Tetrahydrofolic acid  Transfer of one carboxyl units

8

Lipoic acid Lipoic acid Hydrogen transport and acyl transfer

9

Cobamide (B12) Cobamide co-enzymes Isomerisation of methyl melonyl coenzyme-A

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