(A) Biotin
(B) Pantothenic acid
(C) Riboflavin
(D) Thiamin
Author:
A molecule of CO2 is captured by biotin when it acts as coenzyme for carboxylation reaction. The carboxyl group is covalently attached to?
(A) A nitrogen (N1) of the biotin molecule
(B) Sulphur of thiophene ring
(C) α-Amino group of lysine
(D) α-Amino group of protein
In biotin-containing enzymes, the biotin is bound to the enzyme by?
(A) An amide linkage to carboxyl group of
glutamine
(B) A covalent bond with CO2
(C) An amide linkage to an amino group of lysine
(D) An amide linkage to α-carboxyl group of
protein
The coenzyme required for conversion of pyruvate to oxaloacetate is?
(A) FAD
(B) NAD
(C) TPP
(D) Biotin
Biotin is a coenzyme of the enzyme?
(A) Carboxylase
(B) Hydroxylase
(C) Decarboxylase
(D) Deaminase
Epileptiform convulsion in human infants have been attributed to the deficiency of the vitamin?
(A) B1
(B) B2
(C) B6
(D) B12
‘Xanthurenic acid index’ is a reliable criterion for the deficiency of the vitamin?
(A) Pyridoxal
(B) Thiamin
(C) Pantothenic acid
(D) Cobalamin
Deficiency of vitamin B6 may occur in?
(A) Obese person
(B) Thin person
(C) Alcoholics
(D) Diabetics