(A) Pyruvate
(B) Methylmalonate
(C) Malate
(D) Lactate
Author:
A deficiency of vitamin B12 causes?
(A) Beri-Beri
(B) Scurvy
(C) Perniciuos anemia
(D) Ricket
Emperical formula of cobalamin is?
(A) C63H88N12O14P.CO
(B) C61H82N12O12P.CO
(C) C61H88N12O14P.CO
(D) C63H88N14O14P.CO
Vitamin B12 has a complex ring structure (corrin ring) consisting of four?
(A) Purine rings
(B) Pyrimidine rings
(C) Pyrrole rings
(D) Pteridine rings
The central heavy metal cobalt of vitamin B12 is coordinately bound to?
(A) Cyanide group
(B) Amino group
(C) Carboxyl group
(D) Sulphide group
The central structure of B12 referred to as corrin ring system consists of?
(A) Cobalt
(B) Manganese
(C) Magnesium
(D) Iron
A cofactor required in oxidative decarboxylation of pyruvate is?
(A) Lipoate
(B) Pantothenic acid
(C) Biotin
(D) Para aminobenzoic acid
The cofactor or its derivative required for the conversion of acetyl CoA to malonyl- CoA is?
(A) FAD
(B) ACP
(C) NAD+
(D) Biotin