Biosynthesis of glucuronic acid requires the: (A) Oxidation of UDP glucose, (B) Oxidation of glucose 6-phosphate, (C) Oxidation of 6-phophoguconate, (D) Oxidanation of glucose
Answer is A. Glucuronic acid is a sugar acid derived from glucose, with its sixth carbon atom oxidized to a carboxylic acid. In living beings, this primary oxidation occurs with UDP-a-D-glucose (UDPG), not with the free sugar.Ref: DM Vasudevan, 7th edition, page no: 120