208 + Interview Questions in GENERAL QA IN VITAMINS Page 4 InterviewSolution

151.	Gammaxane is an antimetabolite of (A) Thiamine (B) Riboflavin (C) Pyridoxin (D) Inositol
Answer» Gammaxane is an antimetabolite of Inositol.

Discussion

152.	Niacin or nicotinic acid is a monocarboxylic acid derivative of (A) Pyridine (B) Pyrimidine (C) Flavin (D) Adenine
Answer» Niacin or nicotinic acid is a monocarboxylic acid derivative of Pyridine.

Discussion

153.	Which of the vitamins is a potent antioxidant of Vitamin A? (A) Vitamin C (B) Vitamin E (C) Vitamin K (D) Vitamin D
Answer» Vitamin E is a potent antioxidant of Vitamin A.

Discussion

154.	Transketolase activity is affected in (A) Bitoin deficiency (B) Pyridoxine deficiency (C) PABA deficiency (D) Thiamine deficiency
Answer» Transketolase activity is affected in Thiamine deficiency.

Discussion

155.	Thiamin diphosphate is required for oxidative decarboxylation of (A) α-Keto acids (B) α-Amino acids (C) Fatty acids (D) All of these
Answer» Thiamin diphosphate is required for oxidative decarboxylation of α-Keto acids.

Discussion

156.	Pellagra preventing factor is (A) Thiamin (B) Riboflavin (C) Niacin (D) Pyridoxine
Answer» Pellagra preventing factor is Niacin.

Discussion

157.	Thiamin requirement is greater in (A) Non-vegetarians (B) Alcoholics (C) Pregnant women (D) Both B and C
Answer» (D) Both B and C

Discussion

158.	Daily requirement of thiamin is (A) 0.1 mg/1,000 Calories (B) 0.5 mg/1,000 Calories (C) 0.8 mg/1,000 Calories (D) 1.0 mg/1,000 Calories
Answer» Daily requirement of thiamin is 0.5 mg/1,000 Calories.

Discussion

159.	Biotin is involved in which of the following types of reactions? (A) Hydroxylation (B) Carboxylation (C) Decarboxylation (D) Deamination
Answer» (B) Carboxylation

Discussion

160.	Which of the following vitamins is the precurssor of CoA? (A) Riboflavin (B) Pantothenate (C) Thiamine (D) Cobamide
Answer» Pantothenate vitamins is the precurssor of CoA.

Discussion

161.	Vitamins that function as dinucleotide derivatives include all the following except (A) Thiamine (B) Niacin (C) Nicotinate (D) Vitamin B2
Answer» (A) Thiamine

Discussion

162.	The three vitamins which are specially required for proper nerve functions are (A) Thiamine, Niacin and Riboflavin (B) Thiamin, Folic acid, Choline (C) Thiamine, Riboflavin, Pantothenic acid (D) Thiamine, Pyridoxin, Vitamin B12
Answer» (D) Thiamine, Pyridoxin, Vitamin B₁₂

Discussion

163.	All the following vitamins give rise to cofactors that are phosphorylated in the active form except (A) Vitamin A (B) Vitamin B1 (C) Vitamin D (D) Vitamin E
Answer» (B) Vitamin B₁

Discussion

164.	Vitamin B12 initially binds to the proteins known as (A) Transcobalamin I (B) R-proteins (C) Transcobalamin II (D) Intrinsic factor of castle
Answer» Vitamin B₁₂ initially binds to the proteins known as R-proteins.

Discussion

165.	Vitamin B12 is (A) Not stored in the body (B) Stored in bone marrow (C) Stored in liver (D) Stored in RE cells
Answer» Vitamin B₁₂ is Stored in liver.

Discussion

166.	Carotenes are transported with the (A) Minerals (B) Proteins (C) Lipids (D) Lipoproteins
Answer» Carotenes are transported with the Lipoproteins.

Discussion

167.	Extrinsic factor of castle is (A) Vitamin B12 (B) Glycoprotein (C) R-Proteins (D) Sigma protein
Answer» Extrinsic factor of castle is Glycoprotein.

Discussion

168.	The anti-vitamin for para amino benzoic acid is (A) Aminopterin (B) Dicoumasol (C) Sulphanomides (D) Thiopamic acid
Answer» The anti-vitamin for para amino benzoic acid is Sulphanomides.

Discussion

169.	An anti-vitamin for folic acid is (A) Aminopterin (B) Dicoumarol (C) Pyrithiamine (D) Isoniazid
Answer» An anti-vitamin for folic acid is Aminopterin.

Discussion

170.	The anti-vitamin for para amino benzoic acid is (A) Aminopterrin (B) Dicoumarol (C) INH (D) Sulphonamides
Answer» The anti-vitamin for para amino benzoic acid is Sulphonamides.

Discussion

171.	Chemically, Extrinsic Factor of Castle is a (A) Mucoprotein (B) Glycoprotein (C) Mucopolysaccharide (D) Cyanocobalaminm
Answer» Chemically, Extrinsic Factor of Castle is a Cyanocobalaminm.

Discussion

172.	Which among the following fatty acids is an essential fatty acid for man?(A) Palmitic acid (B) Oleic acid (C) Linoleic acid (D) None of these
Answer» (C) Linoleic acid

Discussion

173.	The anti-vitamin for para amino benzoic acid is (A) Aminopterin (B) Dicoumarol (C) INH (D) Sulphanomides
Answer» The anti-vitamin for para amino benzoic acid is Sulphanomides.

Discussion

174.	Chemically, lipoic acid is (A) Saturated fatty acid (B) Unsaturated fatty acid (C) Amino acid (D) Sulphur containing fatty acid
Answer» Chemically, lipoic acid is Sulphur containing fatty acid.

Discussion

175.	The precursor of CoA is (A) Riboflavin (B) Pyridoxamine (C) Thiamin (D) Pantothenate
Answer» The precursor of CoA is Pantothenate.

Discussion

176.	The normal serum concentration of 1,25- dihydroxycholecalciferol in pg/ml is (A) 26–65 (B) 1–5 (C) 5–20 (D) 80–100
Answer» The normal serum concentration of 1,25- dihydroxycholecalciferol in pg/ml is 26–65.

Discussion

177.	The normal serum concentration of vitamin A in mg/100 ml is (A) 5–10 (B) 15–60 (C) 100–150 (D) 0–5
Answer» The normal serum concentration of vitamin A in mg/100 ml is 15–60.

Discussion

178.	In human beings, vitamin E prevents (A) Sterility (B) Hepatic necrosis (C) Muscular dystrophy (D) None of these
Answer» (D) None of these

Discussion

179.	Hydroxylation of 25-hydroxy cholecalciferol is promoted by (A) Cytochrome - a (B) Parathyroid hormone (C) Cytochrome-b (D) CAMP
Answer» Hydroxylation of 25-hydroxy cholecalciferol is promoted by Parathyroid hormone.

Discussion

180.	Calcitriol inhibits the conversion of (A) Cholesterol into 7-dehydrocholesterol (B) Cholecalciferol into 1-hydroxycholecalciferol (C) Cholecalciferol into 25-hydroxycholecalciferol (D) 25-Hydroxycholecalciferol into 1,25- dihydroxycholecalciferol
Answer» (D) 25-Hydroxycholecalciferol into 1,25- dihydroxycholecalciferol

Discussion

181.	One international unit (I.U) of vitamin D is defined as the biological activity of (A) 0.025 µg of cholecalciferol (B) 0.025 µg of 7-dehydrocholecalciferol (C) 0.025 µg of ergosterol (D) 0.025 µg of ergocalciferol
Answer» One international unit (I.U) of vitamin D is defined as the biological activity of 0.025 µg of cholecalciferol.

Discussion

182.	The β-ring of 7-dehydrocholesterol is cleaved to form cholecalciferol by (A) Infrared light (B) Dim light (C) Ultraviolet irridation with sunlight (D) Light of the tube lights
Answer» (C) Ultraviolet irridation with sunlight

Discussion

183.	Calcitriol synthesis involves (A) Both liver and kidney (B) Intestine (C) Adipose tissue (D) Muscle
Answer» Calcitriol synthesis involves Both liver and kidney.

Discussion

184.	Calcitriol is (A) 1-OH-cholecalciferol (B) 25-OH-cholecalciferol (C) 24, 25-diOH cholecalciferol (D) 1, 25-diOH cholecalciferol
Answer» (D) 1, 25-diOH cholecalciferol

Discussion

185.	Tubular reabsorption of calcium is increased by (A) Cholecalciferol (B) 25-Hydroxycholecalciferol (C) Calcitriol (D) All of these
Answer» Tubular reabsorption of calcium is increased by Calcitriol.

Discussion

186.	1-hydroxylation of 25-OH vitamin D3 takes place in (A) Liver (B) Kidneys (C) Intestine (D) Pancreas
Answer» 1-hydroxylation of 25-OH vitamin D₃ takes place in Kidneys.

Discussion

187.	25-Hydroxylation of vitamin D occurs in (A) Skin (B) Liver (C) Kidneys (D) Intestinal mucosa
Answer» 25-Hydroxylation of vitamin D occurs in Liver.

Discussion

188.	In renal rickets, the following hydroxylation of Vitamin D3 does not take place: (A) 25 (B) 1 (C) 24 (D) 7
Answer» In renal rickets, the following hydroxylation of Vitamin D₃ does not take place 1.

Discussion

189.	Subacute combined degeneration of cord is caused due to deficiency of (A) Niacin (B) Cobalamin (C) Biotin (D) Thiamin
Answer» Subacute combined degeneration of cord is caused due to deficiency of Cobalamin.

Discussion

190.	Ergosterol is found in (A) Animals (B) Plants (C) Bacteria (D) All of these
Answer» Ergosterol is found in Plants.

Discussion

191.	Provitamin D3 is (A) Cholecalciferol (B) Ergosterol (C) 7-Dehydrocholesterol (D) Ergocalifero
Answer» Provitamin D₃ is 7-Dehydrocholesterol.

Discussion

192.	The human species can biosynthesize (A) Vitamin C (B) Vitamin B12 (C) Thiamine (D) Niacin
Answer» The human species can biosynthesize Niacin.

Discussion

193.	The following has cyanide: (A) Vitamin B12 (B) Adenyl cobamide (C) Benzimidazole cobamide (D) Methyl cobamide
Answer» Vitamin B_12. has cyanide.

Discussion

194.	The following has cyanide: (A) Vitamin B12 (B) Adenyl cobamide (C) Benzimidazole cobamide (D) Methyl cobamide
Answer» The following has cyanide Vitamin B_12.

Discussion

195.	The maximum specific dynamic action of food stuff is exerted by (A) carbohydrates (B) fats (C) proteins (D) vitamins
Answer» The maximum specific dynamic action of food stuff is exerted by proteins.

Discussion

196.	The central heavy metal cobalt of vitamin B12 is coordinately bound to (A) Cyanide group (B) Amino group (C) Carboxyl group (D) Sulphide group
Answer» The central heavy metal cobalt of vitamin B₁₂ is coordinately bound to Cyanide group.

Discussion

197.	The vitamin required for carboxylation reaction is (A) Vitamin B2 (B) Vitamin B6 (C) Biotin (D) Vitamin B12
Answer» The vitamin required for carboxylation reaction is Biotin.

Discussion

198.	One of the main functions of Vitamin K is the cofactor for (A) Carboxylase for the formation of γ--carboxy glutamate (B) Methylation by S-adenosyl methionine (C) Carboxylation by biotin (D) One carbon transfer by tetra hydrofolate
Answer» (A) Carboxylase for the formation of γ--carboxy glutamate

Discussion

199.	Vitamin K is a cofactor for (A) Gamma carboxylation of glutamic acid residue (B) β-Oxidation of fatty acid (C) Formation of γ-amino butyrate (D) Synthesis of tryptophan
Answer» (A) Gamma carboxylation of glutamic acid residue

Discussion

200.	Vitamin K is involved in posttranslational modification of the blood clotting factors by acting as cofactor for the enzyme: (A) Carboxylase (B) Decarboxylase (C) Hydroxylase (D) Oxidase
Answer» (A) Carboxylase

Discussion

Explore topic-wise InterviewSolutions in .

Gammaxane is an antimetabolite of (A) Thiamine (B) Riboflavin (C) Pyridoxin (D) Inositol

Niacin or nicotinic acid is a monocarboxylic acid derivative of (A) Pyridine (B) Pyrimidine (C) Flavin (D) Adenine

Which of the vitamins is a potent antioxidant of Vitamin A? (A) Vitamin C (B) Vitamin E (C) Vitamin K (D) Vitamin D

Transketolase activity is affected in (A) Bitoin deficiency (B) Pyridoxine deficiency (C) PABA deficiency (D) Thiamine deficiency

Thiamin diphosphate is required for oxidative decarboxylation of (A) α-Keto acids (B) α-Amino acids (C) Fatty acids (D) All of these

Pellagra preventing factor is (A) Thiamin (B) Riboflavin (C) Niacin (D) Pyridoxine

Thiamin requirement is greater in (A) Non-vegetarians (B) Alcoholics (C) Pregnant women (D) Both B and C

Daily requirement of thiamin is (A) 0.1 mg/1,000 Calories (B) 0.5 mg/1,000 Calories (C) 0.8 mg/1,000 Calories (D) 1.0 mg/1,000 Calories

Biotin is involved in which of the following types of reactions? (A) Hydroxylation (B) Carboxylation (C) Decarboxylation (D) Deamination

Which of the following vitamins is the precurssor of CoA? (A) Riboflavin (B) Pantothenate (C) Thiamine (D) Cobamide

Vitamins that function as dinucleotide derivatives include all the following except (A) Thiamine (B) Niacin (C) Nicotinate (D) Vitamin B2

The three vitamins which are specially required for proper nerve functions are (A) Thiamine, Niacin and Riboflavin (B) Thiamin, Folic acid, Choline (C) Thiamine, Riboflavin, Pantothenic acid (D) Thiamine, Pyridoxin, Vitamin B12

All the following vitamins give rise to cofactors that are phosphorylated in the active form except (A) Vitamin A (B) Vitamin B1 (C) Vitamin D (D) Vitamin E

Vitamin B12 initially binds to the proteins known as (A) Transcobalamin I (B) R-proteins (C) Transcobalamin II (D) Intrinsic factor of castle

Vitamin B12 is (A) Not stored in the body (B) Stored in bone marrow (C) Stored in liver (D) Stored in RE cells

Carotenes are transported with the (A) Minerals (B) Proteins (C) Lipids (D) Lipoproteins

Extrinsic factor of castle is (A) Vitamin B12 (B) Glycoprotein (C) R-Proteins (D) Sigma protein

The anti-vitamin for para amino benzoic acid is (A) Aminopterin (B) Dicoumasol (C) Sulphanomides (D) Thiopamic acid

An anti-vitamin for folic acid is (A) Aminopterin (B) Dicoumarol (C) Pyrithiamine (D) Isoniazid

The anti-vitamin for para amino benzoic acid is (A) Aminopterrin (B) Dicoumarol (C) INH (D) Sulphonamides

Chemically, Extrinsic Factor of Castle is a (A) Mucoprotein (B) Glycoprotein (C) Mucopolysaccharide (D) Cyanocobalaminm

Which among the following fatty acids is an essential fatty acid for man?(A) Palmitic acid (B) Oleic acid (C) Linoleic acid (D) None of these

The anti-vitamin for para amino benzoic acid is (A) Aminopterin (B) Dicoumarol (C) INH (D) Sulphanomides

Chemically, lipoic acid is (A) Saturated fatty acid (B) Unsaturated fatty acid (C) Amino acid (D) Sulphur containing fatty acid

The precursor of CoA is (A) Riboflavin (B) Pyridoxamine (C) Thiamin (D) Pantothenate

The normal serum concentration of 1,25- dihydroxycholecalciferol in pg/ml is (A) 26–65 (B) 1–5 (C) 5–20 (D) 80–100

The normal serum concentration of vitamin A in mg/100 ml is (A) 5–10 (B) 15–60 (C) 100–150 (D) 0–5

In human beings, vitamin E prevents (A) Sterility (B) Hepatic necrosis (C) Muscular dystrophy (D) None of these

Hydroxylation of 25-hydroxy cholecalciferol is promoted by (A) Cytochrome - a (B) Parathyroid hormone (C) Cytochrome-b (D) CAMP

Calcitriol inhibits the conversion of (A) Cholesterol into 7-dehydrocholesterol (B) Cholecalciferol into 1-hydroxycholecalciferol (C) Cholecalciferol into 25-hydroxycholecalciferol (D) 25-Hydroxycholecalciferol into 1,25- dihydroxycholecalciferol

One international unit (I.U) of vitamin D is defined as the biological activity of (A) 0.025 µg of cholecalciferol (B) 0.025 µg of 7-dehydrocholecalciferol (C) 0.025 µg of ergosterol (D) 0.025 µg of ergocalciferol

The β-ring of 7-dehydrocholesterol is cleaved to form cholecalciferol by (A) Infrared light (B) Dim light (C) Ultraviolet irridation with sunlight (D) Light of the tube lights

Calcitriol synthesis involves (A) Both liver and kidney (B) Intestine (C) Adipose tissue (D) Muscle

Calcitriol is (A) 1-OH-cholecalciferol (B) 25-OH-cholecalciferol (C) 24, 25-diOH cholecalciferol (D) 1, 25-diOH cholecalciferol

Tubular reabsorption of calcium is increased by (A) Cholecalciferol (B) 25-Hydroxycholecalciferol (C) Calcitriol (D) All of these

1-hydroxylation of 25-OH vitamin D3 takes place in (A) Liver (B) Kidneys (C) Intestine (D) Pancreas

25-Hydroxylation of vitamin D occurs in (A) Skin (B) Liver (C) Kidneys (D) Intestinal mucosa

In renal rickets, the following hydroxylation of Vitamin D3 does not take place: (A) 25 (B) 1 (C) 24 (D) 7

Subacute combined degeneration of cord is caused due to deficiency of (A) Niacin (B) Cobalamin (C) Biotin (D) Thiamin

Ergosterol is found in (A) Animals (B) Plants (C) Bacteria (D) All of these

Provitamin D3 is (A) Cholecalciferol (B) Ergosterol (C) 7-Dehydrocholesterol (D) Ergocalifero

The human species can biosynthesize (A) Vitamin C (B) Vitamin B12 (C) Thiamine (D) Niacin

The following has cyanide: (A) Vitamin B12 (B) Adenyl cobamide (C) Benzimidazole cobamide (D) Methyl cobamide

The following has cyanide: (A) Vitamin B12 (B) Adenyl cobamide (C) Benzimidazole cobamide (D) Methyl cobamide

The maximum specific dynamic action of food stuff is exerted by (A) carbohydrates (B) fats (C) proteins (D) vitamins

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 vitamin required for carboxylation reaction is (A) Vitamin B2 (B) Vitamin B6 (C) Biotin (D) Vitamin B12

One of the main functions of Vitamin K is the cofactor for (A) Carboxylase for the formation of γ--carboxy glutamate (B) Methylation by S-adenosyl methionine (C) Carboxylation by biotin (D) One carbon transfer by tetra hydrofolate

Vitamin K is a cofactor for (A) Gamma carboxylation of glutamic acid residue (B) β-Oxidation of fatty acid (C) Formation of γ-amino butyrate (D) Synthesis of tryptophan

Vitamin K is involved in posttranslational modification of the blood clotting factors by acting as cofactor for the enzyme: (A) Carboxylase (B) Decarboxylase (C) Hydroxylase (D) Oxidase