Vitamins

In human body highest concentration of ascorbic acid is found in 

(A) Liver 

(B) Adrenal cortex 

(C) Adrenal medulla 

(D) Spleen

The requirement of vitamin E is increased with greater intake of 

(A) Carbohydrates 

(B) Proteins 

(C) Polyunsaturated fat 

(D) Saturated fat 

Retinoic acid is involved in the synthesis of 

(A) Rhodopsin 

(B) Iodopsin 

(C) Porphyrinopsin 

(D) Glycoproteins

Niacin or nicotinic acid is a monocarboxylic acid derivative of 

(A) Pyridine 

(B) Pyrimidine 

(C) Flavin 

(D) Adenine

Chemically, Extrinsic Factor of Castle is a 

(A) Mucoprotein 

(B) Glycoprotein 

(C) Mucopolysaccharide 

(D) Cyanocobalaminm

The vitamin required for the formation of hydroxyproline (in collagen) is 

(A) Vitamin C 

(B) Vitamin A 

(C) Vitamin D 

(D) Vitamin E

Isonicotinic acid hydrazide given in the treatment of tuberculosis may lead to a deficiency of 

(A) Vitamin A 

(B) Pyridoxin 

(C) Folate 

(D) Inositol

In pernicious anemia, Urine contains high amounts of 

(A) Methyl malonic acid 

(B) FIGLU 

(C) VMA 

(D) 5 HIAA 

Laboratory diagnosis of vitamin B₁₂ deficiency can be made by measuring the urinary excretion of 

(A) Xanthurenic acid 

(B) Formiminoglutamic acid 

(C) Methylmalonic acid 

(D) Homogentisic acid

The vitamin required for carboxylation reaction is 

(A) Vitamin B₂ 

(B) Vitamin B₆ 

(C) Biotin 

(D) Vitamin B₁₂