 
			 
			MCQOPTIONS
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				This section includes 12 Mcqs, each offering curated multiple-choice questions to sharpen your Enzyme Technology knowledge and support exam preparation. Choose a topic below to get started.
| 1. | __________ is a method which is highly used for lab scale procedures than large scale work. | 
| A. | Ultrasonication | 
| B. | Homogenization | 
| C. | Freezing | 
| D. | Alkali treatment | 
| Answer» B. Homogenization | |
| 2. | Mortar and pestle, french press and homogenizer are widely used to lyse the cells by ultrasonication. | 
| A. | True | 
| B. | False | 
| Answer» C. | |
| 3. | Freezing technique is not preferred unless otherwise there is a need. | 
| A. | True | 
| B. | False | 
| Answer» B. False | |
| 4. | ____________ technique is nothing but a cold or psychrophilic shock. | 
| A. | Ultrasonication | 
| B. | Homogenization | 
| C. | Freezing | 
| D. | Alkali treatment | 
| Answer» D. Alkali treatment | |
| 5. | The technique in which the cells are subjected to cold temperature of about -15 C to -25 C is referred to as _____________ | 
| A. | ultrasonics | 
| B. | freezing | 
| C. | homogenization | 
| D. | osmotic shock | 
| Answer» C. homogenization | |
| 6. | Homogenization performed by passing the cells at high pressure through narrow orifice which can also cause cell rupture is referred to as _______________ | 
| A. | ultrasonicator | 
| B. | freezer | 
| C. | mortar and pestle | 
| D. | french press | 
| Answer» B. freezer | |
| 7. | A _________ has long teflon tube about 30-40 cm long which is bulged at the end and has an automated machine for providing the pressure. | 
| A. | ultrasonicator | 
| B. | homogenizer | 
| C. | osmotic shock | 
| D. | mortar and pestle | 
| Answer» D. mortar and pestle | |
| 8. | Homogenization utilizing ____________ is one where in manual pressure is created for cell lysis. | 
| A. | mortar and pestle | 
| B. | ultrasonicator | 
| C. | freezer | 
| D. | french press | 
| Answer» B. ultrasonicator | |
| 9. | Homogenization cannot be done by using which one of the following? | 
| A. | Homogenizer | 
| B. | Mortar and pestle | 
| C. | French press | 
| D. | Ultrasonicator | 
| Answer» E. | |
| 10. | The procedure in which cell lysis occur because of shock waves which are formed due to collapses occurring in buffered solution containing cells is referred to as _______________ | 
| A. | alkali treatment | 
| B. | osmotic shock | 
| C. | ultrasonication | 
| D. | detergent treatment | 
| Answer» D. detergent treatment | |
| 11. | ____________ is a phenomenon of assuming frequencies more than 20 kHz which is above the human audibility. | 
| A. | Homogenization | 
| B. | Ultrasonics | 
| C. | Alkali treatment | 
| D. | Freezing | 
| Answer» C. Alkali treatment | |
| 12. | Which of the following is not a physical method for extraction of enzymes? | 
| A. | Osmotic shock | 
| B. | Ultrasonication | 
| C. | Homogenization | 
| D. | Freezing technique | 
| Answer» B. Ultrasonication | |