MCQOPTIONS
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MCQOPTIONS
This section includes 15 Mcqs, each offering curated multiple-choice questions to sharpen your Technology knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Lysozyme is used for bacterial cell disruption. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2. |
The Haraeus centrifuge is not used for volume above 10 L. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 3. |
Which of the following is a physical method of cell disruption? |
| A. | Using detergents |
| B. | Using solvents |
| C. | Using French press |
| D. | Using osmotic shock |
| Answer» D. Using osmotic shock | |
| 4. |
Which of the following is not the product of cell disruption? |
| A. | DNA |
| B. | RNA |
| C. | Protein |
| D. | Water |
| Answer» E. | |
| 5. |
Chitinase is used for the disruption of __________ cell wall. |
| A. | Bacterial |
| B. | Plant |
| C. | Fungal |
| D. | Animal |
| Answer» D. Animal | |
| 6. |
Which of the following method uses a solvent (mostly water) for cell disruption? |
| A. | Homogenization |
| B. | Sonication |
| C. | Blender |
| D. | Osmotic shock |
| Answer» E. | |
| 7. |
Which of the following technique uses sound waves for cell disruption? |
| A. | Homogenization |
| B. | Sonication |
| C. | Blender |
| D. | Mortar and Pestle |
| Answer» C. Blender | |
| 8. |
Which of the following is the method of cell disruption? |
| A. | Sonication |
| B. | Homogenization |
| C. | Streaking |
| D. | Chemical Treatment |
| Answer» D. Chemical Treatment | |
| 9. |
The number of bacteria can be determined by ___________ |
| A. | Streaking |
| B. | Four flame method |
| C. | Pour plate |
| D. | Pour plate and spread plate |
| Answer» E. | |
| 10. |
Which of the following is not the function of buffer? |
| A. | Prevent cell lysis |
| B. | Chelating the metals |
| C. | Prevent protease action |
| D. | Prevent lipase action |
| Answer» E. | |
| 11. |
Which of the following uses the membrane to concentrate cell suspension? |
| A. | Cepa Z41 |
| B. | Watson Marlow 501 |
| C. | Filtration |
| D. | Autoclude V8 |
| Answer» D. Autoclude V8 | |
| 12. |
The capacity of rotor of Cepa Z41 centrifuge is _____________ |
| A. | 850 g of wet cells |
| B. | 750 g of wet cells |
| C. | 750 g of dry cells |
| D. | 850 g of dry cells |
| Answer» C. 750 g of dry cells | |
| 13. |
The flow rate of Haraeus continuous centrifuge is ______________ |
| A. | 10 mL/h |
| B. | 8 L/h |
| C. | 8 mL/h |
| D. | 10 L/h |
| Answer» E. | |
| 14. |
The flow rate of Watson Marlow 501 was _______________ |
| A. | 350 mL/min |
| B. | 350 dL/min |
| C. | 350 µL/min |
| D. | 350 L/min |
| Answer» B. 350 dL/min | |
| 15. |
What is the flow rate of Autoclude V8/55/24HR? |
| A. | 350 mL/min |
| B. | 8 L/min |
| C. | 8 mL/min |
| D. | 350 L/min |
| Answer» C. 8 mL/min | |