MCQOPTIONS
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MCQOPTIONS
This section includes 167 Mcqs, each offering curated multiple-choice questions to sharpen your Life Sciences knowledge and support exam preparation. Choose a topic below to get started.
| 151. |
Name an enzyme which is not proteinaceous in nature? |
| A. | Cellulases |
| B. | Xylanases |
| C. | Ribozyme |
| D. | Peptidiase |
| Answer» D. Peptidiase | |
| 152. |
Who coined the word enzyme? |
| A. | Wilhelm Kuhne |
| B. | Alfred Russel |
| C. | Robert Koch |
| D. | Rosalind Franklin |
| Answer» B. Alfred Russel | |
| 153. |
Name an enzyme that digests fat? |
| A. | Lipase |
| B. | Sucrase |
| C. | Maltase |
| D. | Fructose |
| Answer» B. Sucrase | |
| 154. |
Name an enzyme that is derived from the stomachs of young ruminant animals and also used in dairy industry to produce cheese? |
| A. | Trypsin |
| B. | Pepsin |
| C. | Liginase |
| D. | Rennin |
| Answer» E. | |
| 155. |
Which enzyme is used in making Baby Foods? |
| A. | Amylase |
| B. | Rennin |
| C. | Trypsin |
| D. | None of the above |
| Answer» D. None of the above | |
| 156. |
Which of the following statement is/are correct about Enzyme: |
| A. | An Enzyme is a protein and is used as a catalyst to accelerate the reaction. |
| B. | Life would not exist without the presence of enzymes. |
| C. | Enzymes participate in cellular metabolic processes. |
| D. | All the above |
| Answer» E. | |
| 157. |
WHAT_IS_THE_FUNCTION_OF_PHOSPHORYLASE??$ |
| A. | Transfer inorganic phosphate |
| B. | Transfer a carboxylate group |
| C. | Use H<sub>2</sub>O<sub>2</sub> as the electron acceptor |
| D. | Transfer amino group |
| Answer» B. Transfer a carboxylate group | |
| 158. |
Which of the following reaction is catalyzed by Lyase?$ |
| A. | Breaking of bonds |
| B. | Formation of bonds |
| C. | Intramolecular rearrangement of bonds |
| D. | Transfer of group from one molecule to another |
| Answer» B. Formation of bonds | |
| 159. |
Mark_the_CORRECT_function_of_enzyme,_Peptidase?$ |
| A. | Cleave phosphodiester bond |
| B. | Cleave amino bonds |
| C. | Remove phosphate from a substrate |
| D. | Removal of H<sub>2</sub>O |
| Answer» C. Remove phosphate from a substrate | |
| 160. |
Name the enzyme which catalyzes the oxidation-reduction reaction? |
| A. | Transaminase |
| B. | Glutamine synthetase |
| C. | Phosphofructokinase |
| D. | Oxidoreductase |
| Answer» E. | |
| 161. |
Name the enzyme secreted by pancreas? |
| A. | Pepsin |
| B. | Chymotrypsin |
| C. | Trypsin |
| D. | Alcohol dehydrogenase |
| Answer» D. Alcohol dehydrogenase | |
| 162. |
Which of this vitamin is associated with the coenzyme Biocytin? |
| A. | Nicotinic acid |
| B. | Thiamine |
| C. | Biotin |
| D. | Pyridoxine |
| Answer» D. Pyridoxine | |
| 163. |
Name the coenzyme of riboflavin (B2)? |
| A. | NAD or NADP |
| B. | FAD and FMN |
| C. | Coenzyme A |
| D. | Thiamine pyrophosphate |
| Answer» C. Coenzyme A | |
| 164. |
What is an apoenzyme? |
| A. | It is a protein portion of an enzyme |
| B. | It is a non-protein group |
| C. | It is a complete, biologically active conjugated enzyme |
| D. | It is a prosthetic group |
| Answer» B. It is a non-protein group | |
| 165. |
What is the nature of an enzyme? |
| A. | Vitamin |
| B. | Lipid |
| C. | Carbohydrate |
| D. | Protein |
| Answer» E. | |
| 166. |
Enzyme increases the rate of reaction by lowering the activation energy. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 167. |
A __________is a biocatalyst that increases the rate of the reaction without being changed. |
| A. | Aluminum oxide |
| B. | Silicon dioxide |
| C. | Enzyme |
| D. | Hydrogen peroxide |
| Answer» D. Hydrogen peroxide | |