The following factor(s) is/are required for the absorption of dietary vitamin B12: A. Gastric acid B. Gastric intrinsic factor C. Transcobalamine D. Both ‘A’ and ‘B’

The following factor(s) is/are required for the absorption
of dietary vitamin B12:
A. Gastric acid
B. Gastric intrinsic factor
C. Transcobalamine
D. Both ‘A’ and ‘B’
by

1 Answer

Answer :

D. Both ‘A’ and ‘B
by

Related questions

Decrease in absorption of which of the following vitamins in the geriatric patient results in pernicious anemia? a) B12 Vitamin B12 requires the intrinsic factor secreted by the gastric mucosa for absorption. b) C Lack of vitamin C may cause development of signs and symptoms of scurvy. c) D Vitamin D deficiency results in an inability to absorb calcium. d) B6 Vitamin B6 affects neuromuscular function.

Description : Decrease in absorption of which of the following vitamins in the geriatric patient results in pernicious anemia? a) B12 Vitamin B12 requires the intrinsic factor secreted by the gastric mucosa for ... results in an inability to absorb calcium. d) B6 Vitamin B6 affects neuromuscular function.

Last Answer : a) B12 Vitamin B12 requires the intrinsic factor secreted by the gastric mucosa for absorption.

Absorption of Vitamin B12 requires the presence of (A) Pepsin (B) Hydrochloric acid (C) Intrinsic factor (D) Boh (B) and (C)

Description : Absorption of Vitamin B12 requires the presence of (A) Pepsin (B) Hydrochloric acid (C) Intrinsic factor (D) Boh (B) and (C)

Last Answer : Answer : D

The Instrinisic Factor (HCl and mucoproteins) present in the gastric juice help in the absorption of (A) Vitamin B2 (B) Tocopherols (C) Folic acid (D) Vitmain B12

Description : The Instrinisic Factor (HCl and mucoproteins) present in the gastric juice help in the absorption of (A) Vitamin B2 (B) Tocopherols (C) Folic acid (D) Vitmain B12

Last Answer : Answer : D

Metformin is preferred over phenformin because: A. It is more potent B. It is less liable to cause lactic acidosis C. It does not interfere with vitamin B12 absorption D. It is not contraindicated in patients with kidney disease

Description : Metformin is preferred over phenformin because: A. It is more potent B. It is less liable to cause lactic acidosis C. It does not interfere with vitamin B12 absorption D. It is not contraindicated in patients with kidney disease

Last Answer : B. It is less liable to cause lactic acidosis

A 60-year-old patient presented with anorexia, weakness, paresthesia and mental changes. His tongue was red, tendon reflexes were diminished, haemoglobin was 6 g% with large red cells and neutrophils had hypersegmented nuclei. Endoscopy revealed atrophic gastritis. Deficiency of which factor is likely to be responsible for his condition: A. Folic acid B. Vitamin B12 C. Pyridoxine D. Riboflavin

Description : A 60-year-old patient presented with anorexia, weakness, paresthesia and mental changes. His tongue was red, tendon reflexes were diminished, haemoglobin was 6 g% with large red cells and neutrophils had ... be responsible for his condition: A. Folic acid B. Vitamin B12 C. Pyridoxine D. Riboflavin

Last Answer : B. Vitamin B12

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

Description : Intrinsic factor of castle is (A) Vitamin B12 (B) Glycoprotein (C) R-proteins (D) Sigma protein

Last Answer : Answer : B

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

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

Last Answer : Answer : B

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

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

Last Answer : Answer : A

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

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

Last Answer : Answer : B

The daily dietary requirement of vit B12 by an adult is: A. 1-3 μg B. 50-100 μg C. 0.1-0.5 mg D. 1-3 mg

Description : The daily dietary requirement of vit B12 by an adult is: A. 1-3 μg B. 50-100 μg C. 0.1-0.5 mg D. 1-3 mg

Last Answer : A. 1-3 μg

Which of the following terms describes a gastric secretion that combines with vitamin B-12 so that it can be absorbed? a) Intrinsic factor Lack of intrinsic factor is a common finding in the aged patient. b) Amylase Amylase is an enzyme that aids in the digestion of starch. c) Pepsin Pepsin is a gastric enzyme important in protein digestion. d) Trypsin Trypsin is an enzyme that aids in the digestion of protein.

Description : Which of the following terms describes a gastric secretion that combines with vitamin B-12 so that it can be absorbed? a) Intrinsic factor Lack of intrinsic factor is a common finding in the aged ... in protein digestion. d) Trypsin Trypsin is an enzyme that aids in the digestion of protein.

Last Answer : a) Intrinsic factor Lack of intrinsic factor is a common finding in the aged patient.

What vitamin does Intrinsic factor facilitates its absorption from the small intestine?

Description : What vitamin does Intrinsic factor facilitates its absorption from the small intestine?

Last Answer : Need answer

A patient of megaloblastic anaemia was treated with oral folic acid 5 mg daily. After 2 weeks he reported back with cognitive deficit, sensory disturbance, depressed knee jerk, while blood picture and haemoglobin level were improved. What could be the most likely explanation: A. Folic acid was not adequately absorbed resulting in partial response B. Folate therapy has precipitated vitamin B12 deficiency in the neural tissue C. Folate therapy has unmasked pyridoxine deficiency D. Patient has folate reductase abnormality in the nervous system

Description : A patient of megaloblastic anaemia was treated with oral folic acid 5 mg daily. After 2 weeks he reported back with cognitive deficit, sensory disturbance, depressed knee jerk, while ... therapy has unmasked pyridoxine deficiency D. Patient has folate reductase abnormality in the nervous system

Last Answer : D. Patient has folate reductase abnormality in the nervous system

The metabolic reaction requiring vitamin B12 but not folate is: A. Conversion of malonic acid to succinic acid B. Conversion of homocysteine to methionine C. Conversion of serine to glycine D. Thymidylate synthesis

Description : The metabolic reaction requiring vitamin B12 but not folate is: A. Conversion of malonic acid to succinic acid B. Conversion of homocysteine to methionine C. Conversion of serine to glycine D. Thymidylate synthesis

Last Answer : A. Conversion of malonic acid to succinic acid

Megaloblastic anaemia occurs in: A. Vitamin B12 but not folic acid deficiency B. Folic acid but not Vitamin B12 deficiency C. Either Vitamin B12 or folic acid deficiency D. Only combined Vitamin B12 + folic acid deficiency

Description : Megaloblastic anaemia occurs in: A. Vitamin B12 but not folic acid deficiency B. Folic acid but not Vitamin B12 deficiency C. Either Vitamin B12 or folic acid deficiency D. Only combined Vitamin B12 + folic acid deficiency

Last Answer : C. Either Vitamin B12 or folic acid deficiency

Fluconazole offers the following advantage(s) over ketoconazole: A. It is longer acting B. Its absorption from stomach is not dependent on gastric acidity C. It produces fewer side effects D. All of the above

Description : Fluconazole offers the following advantage(s) over ketoconazole: A. It is longer acting B. Its absorption from stomach is not dependent on gastric acidity C. It produces fewer side effects D. All of the above

Last Answer : D. All of the above

Features of methylcobalamin include the following: A. It is an active coenzyme form of vit B12 B. It is required for the synthesis of S-adenosyl methionine C. It is specifically indicated for correcting neurological defects of vit B12 deficiency D. All of the above

Description : Features of methylcobalamin include the following: A. It is an active coenzyme form of vit B12 B. It is required for the synthesis of S-adenosyl methionine C. It is specifically indicated for correcting neurological defects of vit B12 deficiency D. All of the above

Last Answer : D. All of the above

Megaloblastic anaemia developing under the following condition is due entirely to folate deficiency not associated with vitamin B12 deficiency: A. Malnutrition B. Blind loop syndrome C. Phenytoin therapy D. Pregnancy

Description : Megaloblastic anaemia developing under the following condition is due entirely to folate deficiency not associated with vitamin B12 deficiency: A. Malnutrition B. Blind loop syndrome C. Phenytoin therapy D. Pregnancy

Last Answer : C. Phenytoin therapy

The vitamin that is regarded to be a hormone is: A. Vitamin D B. Vitamin C C. Vitamin B12 D. Vitamin A

Description : The vitamin that is regarded to be a hormone is: A. Vitamin D B. Vitamin C C. Vitamin B12 D. Vitamin A

Last Answer : A. Vitamin D

Both folic acid and methyl cobalamin (vitamin B12) are required in (A) Deamination of serine (B) Deamination of threonine (C) Conversion of pyridoxal phosphate to pyridoxamine phosphate (D) Methylation of homocystein to methionine

Description : Both folic acid and methyl cobalamin (vitamin B12) are required in (A) Deamination of serine (B) Deamination of threonine (C) Conversion of pyridoxal phosphate to pyridoxamine phosphate (D) Methylation of homocystein to methionine

Last Answer : Answer : D

Low concentrations of heparin selectively interfere with the following coagulation pathway(s): A. Intrinsic pathway B. Extrinsic pathway C. Common pathway D. Both ‘A’ and ‘C’

Description : Low concentrations of heparin selectively interfere with the following coagulation pathway(s): A. Intrinsic pathway B. Extrinsic pathway C. Common pathway D. Both ‘A’ and ‘C’

Last Answer : A. Intrinsic pathway

Deficiency of vitamin B12 can occur because of (A) Decreased intake of vitamin B12 (B) Atrophy of gastric mucosa (C) Intestinal malabsorption (D) All of these

Description : Deficiency of vitamin B12 can occur because of (A) Decreased intake of vitamin B12 (B) Atrophy of gastric mucosa (C) Intestinal malabsorption (D) All of these

Last Answer : Answer : D

Calcium absorption is inferred by (A) Fatty acids (B) Amino acids (C) Vitamin D (D) Vitamin B12

Description : Calcium absorption is inferred by (A) Fatty acids (B) Amino acids (C) Vitamin D (D) Vitamin B12

Last Answer : Answer : A

The absorption of glucose is decreased by the deficiency of (A) Vitamin A (B) Vitamin D (C) Thiamine (D) Vitamin B12

Description : The absorption of glucose is decreased by the deficiency of (A) Vitamin A (B) Vitamin D (C) Thiamine (D) Vitamin B12

Last Answer : Answer : C

The following receptor type has 7 helical membrane spanning amino acid segments with 3 extracellular and 3 intracellular loops: A. Tyrosine protein kinase receptor B. Gene expression regulating receptor C. Intrinsic ion channel containing receptor D. G protein coupled receptor

Description : Receptors perform the following function/functions: A. Ligand recognition B. Signal transduction C. Both ligand recognition and signal transduction D. Disposal of agonists and antagonists

Last Answer : D. Disposal of agonists and antagonists

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

Description : 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

Last Answer : Answer : D

The three vitamins which are specially required for proper nerve functions are acid: (A) Thiamine, niacin and riboflavin (B) Thiamine, folic acid, choline (C) Thiamine, riboflavin, patothenic acid (D) Thiamine, pyridoxin, vitamin B12

Description : The three vitamins which are specially required for proper nerve functions are acid: (A) Thiamine, niacin and riboflavin (B) Thiamine, folic acid, choline (C) Thiamine, riboflavin, patothenic acid (D) Thiamine, pyridoxin, vitamin B12

Last Answer : Answer : D

The actions of platelet activating factor include the following except: A. Increased capillary permeability B. Bronchodilatation C. Vasodilatation D. Erosion of gastric mucosa

Description : The actions of platelet activating factor include the following except: A. Increased capillary permeability B. Bronchodilatation C. Vasodilatation D. Erosion of gastric mucosa

Last Answer : B. Bronchodilatation

Sucralfate promotes healing of duodenal ulcer by: A. Enhancing gastric mucus and bicarbonate secretion B. Coating the ulcer and preventing the action of acid-pepsin on ulcer base C. Promoting regeneration of mucosa D. Both ‘A’ and ‘B’ are correct

Description : Sucralfate promotes healing of duodenal ulcer by: A. Enhancing gastric mucus and bicarbonate secretion B. Coating the ulcer and preventing the action of acid-pepsin on ulcer base C. Promoting regeneration of mucosa D. Both ‘A’ and ‘B’ are correct

Last Answer : B. Coating the ulcer and preventing the action of acid-pepsin on ulcer base

What is true of acid control therapy with H2 blockers: A. It generally heals duodenal ulcers faster than gastric ulcers B. It checks bleeding in case of bleeding peptic ulcer C. It prevents gastroesophageal reflux D. Both ‘A’ and ‘B’ are correct

Description : What is true of acid control therapy with H2 blockers: A. It generally heals duodenal ulcers faster than gastric ulcers B. It checks bleeding in case of bleeding peptic ulcer C. It prevents gastroesophageal reflux D. Both ‘A’ and ‘B’ are correct

Last Answer : A. It generally heals duodenal ulcers faster than gastric ulcers

Hydroxocobalamin differs from cyanocobalamin in that: A. It is more protein bound and better retained B. It is beneficial in tobacco amblyopia C. It benefits haematological but not neurological manifestations of vit B12 deficiency D. Both ‘A’ and ‘B’ are correct

Description : Hydroxocobalamin differs from cyanocobalamin in that: A. It is more protein bound and better retained B. It is beneficial in tobacco amblyopia C. It benefits haematological but not neurological manifestations of vit B12 deficiency D. Both ‘A’ and ‘B’ are correct

Last Answer : C. It benefits haematological but not neurological manifestations of vit B12 deficiency

Roxithromycin has the following advantage(s) over erythromycin: A. It is more effective in whooping cough B. It causes less gastric irritation C. It has longer plasma half-life D. Both 'B' and 'C' are correct

Description : Roxithromycin has the following advantage(s) over erythromycin: A. It is more effective in whooping cough B. It causes less gastric irritation C. It has longer plasma half-life D. Both 'B' and 'C' are correct

Last Answer : D. Both 'B' and 'C' are correct

Prokinetic drugs serve the following purpose(s) in gastroesophageal reflux disease: A. Reduce reflux of gastric contents into esophagus B. Promote healing of esophagitis C. Reduce acidity of gastric contents D. Both ‘A’ and ‘B’ are correct

Description : Prokinetic drugs serve the following purpose(s) in gastroesophageal reflux disease: A. Reduce reflux of gastric contents into esophagus B. Promote healing of esophagitis C. Reduce acidity of gastric contents D. Both ‘A’ and ‘B’ are correct

Last Answer : A. Reduce reflux of gastric contents into esophagus

Select the drug(s) which afford(s) relief in gastroesophageal reflux by increasing lower esophageal sphincter tone and promoting gastric emptying, but without affecting acidity of gastric contents: A. Sodium alginate B. Metoclopramide C. Cisapride D. Both ‘B’ and ‘C

Description : Select the drug(s) which afford(s) relief in gastroesophageal reflux by increasing lower esophageal sphincter tone and promoting gastric emptying, but without affecting acidity of gastric contents: A. Sodium alginate B. Metoclopramide C. Cisapride D. Both ‘B’ and ‘C

Last Answer : D. Both ‘B’ and ‘C’

Eradication of H.pylori along with gastric antisecretory drugs affords the following benefit(s): A. Faster relief of ulcer pain B. Faster ulcer healing C. Reduced chance of ulcer relapse D. Both ‘B’ and ‘C’ are correct

Description : Eradication of H.pylori along with gastric antisecretory drugs affords the following benefit(s): A. Faster relief of ulcer pain B. Faster ulcer healing C. Reduced chance of ulcer relapse D. Both ‘B’ and ‘C’ are correct

Last Answer : D. Both ‘B’ and ‘C’ are correct

The most suitable laxative for a patient of irritable bowel disease with spastic constipation is: A. Dietary fibre B. Liquid paraffin C. Bisacodyl D. Senna

Description : The most suitable laxative for a patient of irritable bowel disease with spastic constipation is: A. Dietary fibre B. Liquid paraffin C. Bisacodyl D. Senna

Last Answer : A. Dietary fibre

The following is true of selegiline: A. It does not exert antiparkinsonian action unless combined with levodopa B. It overcomes the ‘on-off ’ effect in levodopa treated advanced parkinsonian patients C. It retards the progression of Parkinson's disease D. At doses used in parkinsonism it does not interfere with peripheral metabolism of dietary amines

Description : The following is true of selegiline: A. It does not exert antiparkinsonian action unless combined with levodopa B. It overcomes the on-off ' effect in levodopa treated advanced parkinsonian ... D. At doses used in parkinsonism it does not interfere with peripheral metabolism of dietary amines

Last Answer : . At doses used in parkinsonism it does not interfere with peripheral metabolism of dietary amines

The GABAB receptor: A. Is an intrinsic ion channel containing receptor B. Mediates neuronal depolarization C. Is insensitive to blockade by bicuculline D. Regulates intracellular cAMP

Description : The GABAB receptor: A. Is an intrinsic ion channel containing receptor B. Mediates neuronal depolarization C. Is insensitive to blockade by bicuculline D. Regulates intracellular cAMP

Last Answer : C. Is insensitive to blockade by bicuculline

Agonist induced autophosphorylation, internalization and down regulation is a distinctive feature of: A. G-protein coupled receptors B. Intrinsic ion channel containing receptors C. Tyrosine protein kinase receptors D. Receptors regulating gene expression

Description : Agonist induced autophosphorylation, internalization and down regulation is a distinctive feature of: A. G-protein coupled receptors B. Intrinsic ion channel containing receptors C. Tyrosine protein kinase receptors D. Receptors regulating gene expression

Last Answer : C. Tyrosine protein kinase receptors

The following receptor has an intrinsic ion channel: A. Histamine H1 receptor B. Histamine H2 receptor C. Adrenergic alfa receptor D. GABA-benzodiazepine receptor

Description : The following receptor has an intrinsic ion channel: A. Histamine H1 receptor B. Histamine H2 receptor C. Adrenergic alfa receptor D. GABA-benzodiazepine receptor

Last Answer : D. GABA-benzodiazepine receptor

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

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

Last Answer : Answer : A

Extrinsic factor of castle is (A) Vitamin B12 (B) Glycoprotein (C) R-Proteins (D) Sigma protein VITAMINS 127

Description : Extrinsic factor of castle is (A) Vitamin B12 (B) Glycoprotein (C) R-Proteins (D) Sigma protein VITAMINS 127

Last Answer : Answer : B

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

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

Last Answer : Answer : C

Which one of the factors are required for the maturation of erythrocytes ? (a) Vitamin B12 (b) Vitamin C (c) Vitamin D (d) Vitamin A

Description : Which one of the factors are required for the maturation of erythrocytes ? (a) Vitamin B12 (b) Vitamin C (c) Vitamin D (d) Vitamin A

Last Answer : (a) Vitamin B12

Streptomycin sulfate is not absorbed orally because it is: A. Degraded by gastrointestinal enzymes B. Destroyed by gastric acid C. Highly ionized at a wide range of pH values D. Insoluble in water

Description : Streptomycin sulfate is not absorbed orally because it is: A. Degraded by gastrointestinal enzymes B. Destroyed by gastric acid C. Highly ionized at a wide range of pH values D. Insoluble in water

Last Answer : C. Highly ionized at a wide range of pH values

Semisynthetic penicillins developed so far have overcome the following drawbacks of benzylpenicillin except: A. Lack of efficacy against gram negative bacilli B. Susceptibility to bacterial penicillinase C. Inactivation by gastric acid D. Potential to cause hypersensitivity reactions

Description : Semisynthetic penicillins developed so far have overcome the following drawbacks of benzylpenicillin except: A. Lack of efficacy against gram negative bacilli B. Susceptibility to bacterial penicillinase C. Inactivation by gastric acid D. Potential to cause hypersensitivity reactions

Last Answer : D. Potential to cause hypersensitivity reactions

The following is true of anti-H.pylori therapy except: A. It is indicated in all patients of peptic ulcer B. Resistance to any single antimicrobial drug develops rapidly C. Concurrent suppression of gastric acid enhances efficacy of the regimen D. Colloidal bismuth directly inhibits H.pylori but has poor patient acceptability

Description : The following is true of anti-H.pylori therapy except: A. It is indicated in all patients of peptic ulcer B. Resistance to any single antimicrobial drug develops rapidly C. Concurrent ... efficacy of the regimen D. Colloidal bismuth directly inhibits H.pylori but has poor patient acceptability

Last Answer : A. It is indicated in all patients of peptic ulcer

Choose the correct statement about colloidal bismuth subcitrate: A. It causes prolonged neutralization of gastric acid B. It has anti-H.pylori activity C. It relieves peptic ulcer pain promptly D. All of the above are correct

Description : Choose the correct statement about colloidal bismuth subcitrate: A. It causes prolonged neutralization of gastric acid B. It has anti-H.pylori activity C. It relieves peptic ulcer pain promptly D. All of the above are correct

Last Answer : B. It has anti-H.pylori activity

The following antiulcer drug does not act by reducing the secretion of or neutralizing gastric acid: A. Magaldrate B. Sucralfate C. Misoprostol D. Omeprazol

Description : The following antiulcer drug does not act by reducing the secretion of or neutralizing gastric acid: A. Magaldrate B. Sucralfate C. Misoprostol D. Omeprazol

Last Answer : B. Sucralfate

Antacid combinations of magnesium and aluminium salts are superior to single component preparations because: A. They have rapid as well as sustained acid neutralizing action B. They are less likely to affect gastric emptying C. They are less likely to alter bowel movement D. All of the above

Description : Antacid combinations of magnesium and aluminium salts are superior to single component preparations because: A. They have rapid as well as sustained acid neutralizing action B. They are less likely to affect gastric emptying C. They are less likely to alter bowel movement D. All of the above

Last Answer : D. All of the above