MCQOPTIONS
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MCQOPTIONS
This section includes 436 Mcqs, each offering curated multiple-choice questions to sharpen your Medical Subjects knowledge and support exam preparation. Choose a topic below to get started.
| 351. |
Deficiency of which vitamin causes glossitis dementia roughed keratotic areas on skin and gastrointestinal symptoms ? |
| A. | Riboflavin |
| B. | Pyridoxine |
| C. | Niacin |
| D. | Pantothenic acid |
| Answer» D. Pantothenic acid | |
| 352. |
Deficiency of vitamin C causes the following except____________? |
| A. | Painful swollen gums |
| B. | Abnormal Collagen |
| C. | Anaemia |
| D. | Diarrhoea |
| Answer» E. | |
| 353. |
Deficiency of vitamin C causes the following except_______________? |
| A. | Defective collagen synthesis |
| B. | Soft swollen gums |
| C. | Pigeon chest |
| D. | Subcutaneous & other hemorrhage |
| Answer» D. Subcutaneous & other hemorrhage | |
| 354. |
Deficiency of vitamin A causes the following except_____________? |
| A. | Night blindness |
| B. | Corneal dryness |
| C. | Bitot’s spots |
| D. | Myopia |
| Answer» E. | |
| 355. |
Deficiency of nicotinic acid results in____________? |
| A. | Beri-beri |
| B. | Pellagra |
| C. | Night blindness |
| D. | Pernicious anemia |
| Answer» C. Night blindness | |
| 356. |
Decarboxylation of which of the following amino acids results in formation of a vasodilator ? |
| A. | Valine |
| B. | Arginine |
| C. | Histidine |
| D. | Glutamic acid |
| Answer» D. Glutamic acid | |
| 357. |
Daily Vitamin A intake___________? |
| A. | 1000 I.U |
| B. | 2000 I.U |
| C. | 3000 I.U |
| D. | 4000 I.U |
| Answer» E. | |
| 358. |
Daily requirement of iron in man is_____________? |
| A. | 1gm |
| B. | 10 microgram |
| C. | 10 mg |
| D. | 20 mg |
| Answer» D. 20 mg | |
| 359. |
Cytochromes are_____________? |
| A. | Pyridine nucleotides |
| B. | Riboflavin containing nucleotides |
| C. | Metal containing flavoproteins |
| D. | Iron-porphyrin proteins |
| Answer» E. | |
| 360. |
Creatine is formed metabolically from______________? |
| A. | Tryptophan |
| B. | Arginine |
| C. | Phenylalanine |
| D. | Histidine |
| Answer» C. Phenylalanine | |
| 361. |
Consumption of raw egg white in the diet may result in the deficiency of______________? |
| A. | Riboflavin |
| B. | Biotin |
| C. | Thiamine |
| D. | Pyridoxine |
| Answer» C. Thiamine | |
| 362. |
Competitive enzyme inhibition will cause_____________? |
| A. | Decrease of km and increase of Vmax |
| B. | increase of km and increase of Vmax |
| C. | Decrease of km and decrease of Vmax |
| D. | Increase of km and Unchanged of Vmax |
| Answer» E. | |
| 363. |
Colloidal osmotic pressure of plasma is by___________? |
| A. | Albumin |
| B. | Fibrinogen |
| C. | Globulin |
| D. | Prothrombin |
| Answer» B. Fibrinogen | |
| 364. |
Collagen formation is affected in deficiency of_____________? |
| A. | Vit A |
| B. | Vit C |
| C. | Vit B2 |
| D. | Vit D |
| Answer» C. Vit B2 | |
| 365. |
Collagen is rich in_____________? |
| A. | Glutamate and glycine |
| B. | Alanine and glycine |
| C. | Proline and glycine |
| D. | Glutamate and proline |
| Answer» D. Glutamate and proline | |
| 366. |
Cofactor required for lipoprotein lipase activity is_______________? |
| A. | Apo A-II |
| B. | Apo C-II |
| C. | Apo C-III |
| D. | Apo B-II |
| Answer» C. Apo C-III | |
| 367. |
Coenzyme responsible for single carbon transfer is______________? |
| A. | Acetyl co enzyme A |
| B. | Biotin |
| C. | THF4 |
| D. | Pyridoxine |
| Answer» D. Pyridoxine | |
| 368. |
Coenzyme, in an enzymatic reaction usually functions to_____________? |
| A. | Activate the substrate |
| B. | Increase the active sites of apoenzyme |
| C. | Enhance the specificity of apoenzyme |
| D. | Accept one of the cleavage products |
| Answer» E. | |
| 369. |
Coenzyme forms are correctly matched except_____________? |
| A. | Biotin – carboxylated biotin |
| B. | Vitamin B – ATP |
| C. | Niacin – NAD+NADP |
| D. | Vitamin B2 – FMN+FAC |
| Answer» C. Niacin – NAD+NADP | |
| 370. |
Coenzyme A contains which of the following vitamins_______________? |
| A. | Biotin |
| B. | Pyridoxine |
| C. | Pantothenic acid |
| D. | Niacin |
| Answer» D. Niacin | |
| 371. |
Codons are present on_____________? |
| A. | m-RNA |
| B. | DNA |
| C. | t-RNA |
| D. | Ribosomal RNA |
| Answer» B. DNA | |
| 372. |
Cholesterol levels in abnormal person should be preferably less than_____________? |
| A. | 200 mg/dl |
| B. | 180 mg/dl |
| C. | 150 mg/dl |
| D. | 120 mg/dl |
| Answer» B. 180 mg/dl | |
| 373. |
Chargaff rule states that___________? |
| A. | A+G=T+C |
| B. | A/T=G/C |
| C. | A=U=T=G=C |
| D. | A+T=G+C |
| Answer» B. A/T=G/C | |
| 374. |
Cereals are deficient in_____________? |
| A. | Vitamin C |
| B. | Vitamin B complex |
| C. | Iron |
| D. | Calcium |
| Answer» B. Vitamin B complex | |
| 375. |
Cell membrane consists of_________________? |
| A. | Lipids and proteins |
| B. | Lipids only |
| C. | Protein only |
| D. | None of the above |
| Answer» B. Lipids only | |
| 376. |
Cane sugar is____________? |
| A. | Glucose |
| B. | Surose |
| C. | Fructose |
| D. | Maltose |
| Answer» C. Fructose | |
| 377. |
Calcitonin is antagonist_______________? |
| A. | Parathyroid hormone |
| B. | Thyroxine |
| C. | Triidothyronine |
| D. | Serotonin |
| Answer» B. Thyroxine | |
| 378. |
Both Vitamin K and C are involved in______________? |
| A. | The synthesis of clotting factors |
| B. | Post translational modifications |
| C. | Antioxidant mechanisms |
| D. | The microsomal hydroxylation reactions |
| Answer» C. Antioxidant mechanisms | |
| 379. |
Blood glucose level cannot be augmented by mobilization of muscle glycogen due to lack of_____________? |
| A. | G-6-P dehydrogenase |
| B. | G-6-P phydrogenase |
| C. | Aldolase |
| D. | Glucokinase |
| Answer» C. Aldolase | |
| 380. |
Biuret test is confirmatory test for_______________? |
| A. | Protein |
| B. | Fat |
| C. | Carbohydrate |
| D. | None of the above |
| Answer» B. Fat | |
| 381. |
Biotin is required for the activity of_______________? |
| A. | Pyruvate carboxylase |
| B. | Lactate dehydrogenase |
| C. | Succinate thiokinase |
| D. | Phosphohexose isomerase |
| Answer» B. Lactate dehydrogenase | |
| 382. |
Biotin is required for the activity of_____________? |
| A. | Pyruvate carboxylase |
| B. | Lactate dehydrogenase |
| C. | Succinate thiokinase |
| D. | Phosphohexose isomerase |
| Answer» B. Lactate dehydrogenase | |
| 383. |
Biological activity of tocopherols has been attributed, in part to their actions as_____________? |
| A. | Antioxidant |
| B. | Anticoagulants |
| C. | Provitamin |
| D. | Antidotes for selenium poisoning |
| Answer» D. Antidotes for selenium poisoning | |
| 384. |
Bilirubin is produced from________________? |
| A. | Haemoglobin |
| B. | Myoglobin |
| C. | Gall bladder |
| D. | A & B |
| Answer» E. | |
| 385. |
Bile acids are formed from__________? |
| A. | Cholesterol |
| B. | Aminoacids |
| C. | Bilirubin |
| D. | Lipoproteins |
| Answer» B. Aminoacids | |
| 386. |
Bile contains______________? |
| A. | Cholic acid |
| B. | Chenodeoxycholic acid |
| C. | Deoxycholic acid |
| D. | Lithocholic acid |
| E. | All of the above |
| Answer» F. | |
| 387. |
Beri-beri is caused due to the deficiency of______________? |
| A. | Thiamine |
| B. | Pyridoxine |
| C. | Ascorbic acid |
| D. | Riboflavin |
| Answer» B. Pyridoxine | |
| 388. |
Benzidine test is positive with the enzyme______________? |
| A. | Cytochrome oxidase |
| B. | Dehydrogenase |
| C. | Hydrolase |
| D. | Peroxidase |
| Answer» E. | |
| 389. |
B-oxidation of odd-chain fatty aids produce_______________? |
| A. | Succinyl CoA |
| B. | Propionyl CoA |
| C. | Acetyl CoA |
| D. | Malonyl CoA |
| Answer» C. Acetyl CoA | |
| 390. |
Avidin influences which of the following vitamins ? |
| A. | Biotin |
| B. | Niacin |
| C. | Thiamine |
| D. | Phylloquinone |
| Answer» B. Niacin | |
| 391. |
Average daily dose of vitamin C is____________? |
| A. | 30 – 40 mg |
| B. | 50 – 60 mg |
| C. | 60 – 100 mg |
| D. | 100 – 150 mg |
| Answer» C. 60 – 100 mg | |
| 392. |
At PH 7 the binding of 2,3 DPG to hemoglobin occurs at which site ? |
| A. | Sulphydryl group |
| B. | Carboxy terminal |
| C. | Amino terminal |
| D. | Histidine |
| Answer» D. Histidine | |
| 393. |
Ascorbic acid_____________? |
| A. | Is a reducing agent |
| B. | Decrease iron absorption |
| C. | Is harmless in high doses |
| D. | Is requirement for lysyl oxidase |
| Answer» B. Decrease iron absorption | |
| 394. |
Aromatic ring is present in_____________? |
| A. | Arginine |
| B. | Glycine |
| C. | Phenylalanine |
| D. | Phenylalanine, Glycine |
| Answer» D. Phenylalanine, Glycine | |
| 395. |
Argentaffinoma is characterized by excess excretion of_____________? |
| A. | 5- Hydroxy indole acetate |
| B. | 3- Hydroxy phenyl pyruvate |
| C. | Phenyl lactate |
| D. | Phenyl acetate |
| Answer» B. 3- Hydroxy phenyl pyruvate | |
| 396. |
Aniacinosis results in______________? |
| A. | Perleche |
| B. | Beri beri |
| C. | Pellagra |
| D. | Nyctalopia |
| Answer» D. Nyctalopia | |
| 397. |
Angular cheilosis is frequently associated with deficiency of______________? |
| A. | Thiamine |
| B. | Riboflavin |
| C. | Niacin |
| D. | Folic acid |
| Answer» C. Niacin | |
| 398. |
An example of layses is_____________? |
| A. | Glutamine synthetase |
| B. | Fumarase |
| C. | Cholinesterase |
| D. | Amylase |
| Answer» C. Cholinesterase | |
| 399. |
An essential for the conversion of glucose to glycogen in liver is____________? |
| A. | UTP |
| B. | GTP |
| C. | Pyruvate Kinase |
| D. | Guanosine |
| Answer» B. GTP | |
| 400. |
An enzyme that makes a double stranded DNA copy from a single stranded RNA template molecule is known as____________? |
| A. | DNA polymerase |
| B. | RNA polymerase |
| C. | Reverse transcriptase |
| D. | Phospho kinase |
| Answer» D. Phospho kinase | |