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.
| 151. |
The function of vitamin A is/are related to which of the following ? |
| A. | Retinol |
| B. | Retinal |
| C. | Retinoic acid |
| D. | All of the above |
| Answer» E. | |
| 152. |
The fuel value of fat is____________? |
| A. | 4 |
| B. | 7 |
| C. | 9 |
| D. | 5 |
| Answer» D. 5 | |
| 153. |
The following vitamin is important in non-oxidative decarboxylation, transamination and transsulfuration reactions_____________? |
| A. | Riboflavin |
| B. | Thiamine |
| C. | Pyridoxine |
| D. | Pantothenic acid |
| Answer» D. Pantothenic acid | |
| 154. |
The following is not a phospholipid______________? |
| A. | Sphingomyelin |
| B. | Lecithin |
| C. | Cerebroside |
| D. | Cephalin |
| Answer» D. Cephalin | |
| 155. |
The following is not a carrier protein________________? |
| A. | Cerruloplasmin |
| B. | Transferrin |
| C. | Transcobalamine |
| D. | Haptoglobulin |
| Answer» E. | |
| 156. |
The following is false about tryptophan_____________? |
| A. | Non-essential amino acid |
| B. | Involved in serotonin synthesis |
| C. | Involved in niacin synthesis |
| D. | Involved in melatonin in synthesis |
| Answer» B. Involved in serotonin synthesis | |
| 157. |
The following are derived from cholesterol, EXCEPT_____________? |
| A. | Bile acids |
| B. | Steroid hormones |
| C. | Vitamin D |
| D. | Energy |
| Answer» E. | |
| 158. |
The fluid mosaic model of membrane structure was proposed by_______________? |
| A. | Watson and Crick |
| B. | Edwarg Angle |
| C. | G.V Black |
| D. | Singer and Nicolson |
| Answer» E. | |
| 159. |
The first product of glycogenolysis is_____________? |
| A. | Glucose 6 phosphatase |
| B. | Glucose 1,6 diphosphatase |
| C. | Glucose 1- phosphatase |
| D. | Fructose 1- phosphatase |
| Answer» D. Fructose 1- phosphatase | |
| 160. |
The fastest moving fraction of protein in serum When subjected to paper electrophoresis is_____________? |
| A. | Albumin |
| B. | Alpha 1 globulin |
| C. | Beta Globulin |
| D. | Gamma Globulin |
| Answer» B. Alpha 1 globulin | |
| 161. |
The enzymes that catalyses the same reaction but differ in physical properties are called as_____________? |
| A. | Pro enzyme |
| B. | Iso enzyme |
| C. | Co-enzyme |
| D. | Holoenzyme |
| Answer» C. Co-enzyme | |
| 162. |
The enzyme that splits hydrogen peroxide into water and oxygen is_____________? |
| A. | Cytochromes |
| B. | Cytochrome P 450 |
| C. | Super oxide dismutase |
| D. | Catalase |
| Answer» E. | |
| 163. |
The enzyme that is specifically increased in obstructive jaundice is_____________? |
| A. | Glutamate oxaloacetate transaminase |
| B. | Glutamate pyruvate transaminase |
| C. | Alkaline phosphaase |
| D. | Acid phosphatase |
| Answer» D. Acid phosphatase | |
| 164. |
The enzyme involved in the first committed step of glycolysis is____________? |
| A. | Phosphofructokinase |
| B. | Glucose-6-Phosphatase |
| C. | Hexokinase |
| D. | Enolase |
| Answer» D. Enolase | |
| 165. |
The enzyme phosphofructo kinase-1 is strongly activated by_______________? |
| A. | Cyclic AMP |
| B. | Adenosine tri phosphate |
| C. | Citrate |
| D. | Fructose 2,6 bis phosphate |
| Answer» E. | |
| 166. |
The end product of glycolysis under anaerobic conditions is_______________? |
| A. | Lactic acid |
| B. | Pyruvic acid |
| C. | Acetoacetic acid |
| D. | Oxaloacetic acid |
| Answer» B. Pyruvic acid | |
| 167. |
The deficiency of thiamine can be identified by measuring the red cell______________? |
| A. | Transketaolase |
| B. | Transaldolase |
| C. | Alpha ketoglutarate dehydrogenase |
| D. | Pyruvate dehydrogenase |
| Answer» B. Transaldolase | |
| 168. |
The daily requirement of protein for the adults is_________________? |
| A. | 6 gms |
| B. | 60 gms |
| C. | 120 gms |
| D. | 250 gms |
| Answer» C. 120 gms | |
| 169. |
The conversion of glucose 6-P to fructose 6-P is an example of which of the following reactions___________? |
| A. | Phosphate transfer |
| B. | Isomerisation |
| C. | Dehydration |
| D. | Aldol cleavage |
| Answer» C. Dehydration | |
| 170. |
The compound that can give rise to glucose by gluconeogenesis is_____________? |
| A. | Acetyl CoA |
| B. | Lactate |
| C. | Palmitic acid |
| D. | Fructose |
| Answer» C. Palmitic acid | |
| 171. |
The combination of main supporting enzyme is called______________? |
| A. | Apoenzyme |
| B. | Coenzyme |
| C. | Holoenzyme |
| D. | Constitutive enzyme |
| Answer» D. Constitutive enzyme | |
| 172. |
The class of amino acids that contains only non essential amino acids is_______________? |
| A. | Acidic |
| B. | Basic |
| C. | Aromatic |
| D. | Branched chain |
| Answer» B. Basic | |
| 173. |
The citric acid cycle is the final pathway for oxidation of______________? |
| A. | Enzymes |
| B. | Vitamins |
| C. | Minerals |
| D. | None of the above |
| Answer» E. | |
| 174. |
The best technique useful for initial viral load estimation is________________? |
| A. | Real time PCR |
| B. | Widal test |
| C. | Electrophoresis |
| D. | Immunofluoresence |
| Answer» B. Widal test | |
| 175. |
The antibacterial substance present in tears which acts by splitting cell wall components is____________? |
| A. | Penicillin |
| B. | Lysozyme |
| C. | Betalysine |
| D. | Lactoperoxidase |
| Answer» D. Lactoperoxidase | |
| 176. |
The amino acid, which is used is the estimation of collagen is_____________? |
| A. | Hydroxyproline |
| B. | Proline |
| C. | Lysine |
| D. | Glycine |
| Answer» B. Proline | |
| 177. |
The amino acid residue having animino side chain is____________? |
| A. | Lysine |
| B. | Histidine |
| C. | Tyrosine |
| D. | Proline |
| Answer» E. | |
| 178. |
The amino acid required for the synthesis of haem is______________? |
| A. | Glutamine |
| B. | Glutamic acid |
| C. | Glycine |
| D. | Lysine |
| Answer» D. Lysine | |
| 179. |
The amino acid from which niacin synthesized is_______________? |
| A. | Tyrosine |
| B. | Tryptophan |
| C. | Threonine |
| D. | Histidine |
| Answer» C. Threonine | |
| 180. |
The amino acid from which niacin is synthesized is______________? |
| A. | Tyrosine |
| B. | Theronine |
| C. | Tryptophan |
| D. | Histidine |
| Answer» D. Histidine | |
| 181. |
The activity of the following enzyme is affected by biotin deficiency____________? |
| A. | Transketolase |
| B. | Dehydrogenase |
| C. | Oxidase |
| D. | Carboxylase |
| Answer» E. | |
| 182. |
The activity of this plasma enzyme is responsible virtually for all plasma cholesterol esters in humans_______________? |
| A. | Lecithin cholesterol acyl transferase (LCAT) |
| B. | Pyrophospho mevalonate decarboxylase |
| C. | HMG CoA reductase |
| D. | Phospho mevalonate kinase |
| Answer» B. Pyrophospho mevalonate decarboxylase | |
| 183. |
The action of vitamin K in formation of clotting factor is through__________________? |
| A. | Post transcription |
| B. | Post translation |
| C. | Golgi complex |
| D. | Endoplasmic reticulum |
| Answer» C. Golgi complex | |
| 184. |
The abundant glycoprotein in the basement membrane and has binding domain for both ECM and cell-surface receptor is______________? |
| A. | Laminin |
| B. | Fibronectin |
| C. | E – Cadherins |
| D. | Tenascin |
| Answer» B. Fibronectin | |
| 185. |
Scurvy is the result of deficiency of____________? |
| A. | Vitamin A |
| B. | Vitamin C |
| C. | Vitamin B |
| D. | Vitamin D |
| Answer» C. Vitamin B | |
| 186. |
Saponification means hydrolysis of fats by________________? |
| A. | Acid |
| B. | Alkali |
| C. | Water |
| D. | Enzymes |
| Answer» C. Water | |
| 187. |
Ribosomes are usually associated with______________? |
| A. | Endoplasmic reticulum |
| B. | Mitochondria |
| C. | Nucleolus |
| D. | Plasma membrane |
| Answer» B. Mitochondria | |
| 188. |
Rhodopsin deficiency is chiefly associated with________________? |
| A. | Vitamin D deficiency |
| B. | Rickets |
| C. | Vitamin A deficiency |
| D. | Scurvy |
| Answer» D. Scurvy | |
| 189. |
Restriction endonuclease cleaves______________? |
| A. | Double stranded DNA |
| B. | SIngle stranded DNA |
| C. | SIngle stranded RNA |
| D. | Polypeptide |
| Answer» B. SIngle stranded DNA | |
| 190. |
Renal threshold for glucose is______________? |
| A. | 80 mg% |
| B. | 100 mg% |
| C. | 180 mg/ dl |
| D. | 200 mg% |
| Answer» D. 200 mg% | |
| 191. |
Rate limiting step in adrenaline synthesis is conversion of____________? |
| A. | Tyrosine to dopa |
| B. | Phenylalanine to tyrosine |
| C. | Dopa to dopamine |
| D. | Dopamine to nor epinephrine |
| Answer» B. Phenylalanine to tyrosine | |
| 192. |
Rate limiting step in cholesterol synthesis is_______________? |
| A. | HMG CoA synthetase |
| B. | HMG CoA lyase |
| C. | HMG CoA reductase |
| D. | Mevalonate synthetase |
| Answer» D. Mevalonate synthetase | |
| 193. |
R-RNA is mainly produced mainly in___________? |
| A. | Nucleus |
| B. | Nucleolus |
| C. | Ribosome |
| D. | Endoplasmic reticulum |
| Answer» C. Ribosome | |
| 194. |
Quaternary structure of protein is_____________? |
| A. | The arrangement sequence of amino acids in the polypeptide chain |
| B. | Inter relation between amino acids in a single polypeptide chain |
| C. | Inter relation of amino acids in 2 polypeptide chains |
| D. | The inter relation and arrangement of polypeptides in a protein with more than 2 polypeptide chains |
| Answer» E. | |
| 195. |
Proteins are linear polymers of amino acids, They fold into compact structures Sometimes these folded structures associate to form homo or hetero dimers Which one of the following refers to this associated form ? |
| A. | Denatured state |
| B. | Molecular aggregation |
| C. | Precipitation |
| D. | Quaternary structure |
| Answer» E. | |
| 196. |
Proteins are absorbed from GIT as_____________? |
| A. | Amino acids |
| B. | Peptides |
| C. | Peptones |
| D. | All of the above |
| Answer» B. Peptides | |
| 197. |
Prostaglandin synthesis is partially switched off by______________? |
| A. | Lipo oxygenase inhibition |
| B. | Cyclo-oxygenase inhibition |
| C. | Reductase |
| D. | Peroxidase |
| Answer» C. Reductase | |
| 198. |
Precursor of melanin is________________? |
| A. | Phenylalanine |
| B. | Tryptophan |
| C. | Tyrosine |
| D. | Methionine |
| Answer» D. Methionine | |
| 199. |
Phosphofructokinase is the key enzyme of______________? |
| A. | Glycolysis |
| B. | Gluconeogenesis |
| C. | Beta oxidation |
| D. | TCA cycle |
| Answer» B. Gluconeogenesis | |
| 200. |
Peroxidase enzyme contain______________? |
| A. | Chromium |
| B. | Selenium |
| C. | Magnesium |
| D. | Calcium |
| Answer» C. Magnesium | |