MCQOPTIONS
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MCQOPTIONS
This section includes 8 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. |
The techniques which adopts the hypertonic and hypotonic condition for cell lysis is referred to as ____________ |
| A. | EDTA treatment |
| B. | Ultrasonification |
| C. | Osmotic shock |
| D. | Homogenization |
| Answer» D. Homogenization | |
| 2. |
__________________ is an example of anionic detergent. |
| A. | Tween |
| B. | Cetyl triethyl ammonium bromide |
| C. | Sodium dodecyl sulphate (SDS) |
| D. | Triton-X-100 |
| Answer» D. Triton-X-100 | |
| 3. |
Which of the following is cationic detergent? |
| A. | Sodium dodecyl sulphate (SDS) |
| B. | Cetyl triethyl ammonium bromide |
| C. | Sodium lauryl sulphate (SLS) |
| D. | Triton-X-100 |
| Answer» C. Sodium lauryl sulphate (SLS) | |
| 4. |
In ___________ treatment, certain molecules interact through ionic or Vander wall forces which leads to solubilization of phospholipids and lipoprotein which in turn, increases membrane permeability directing to cell lysis. |
| A. | Lysozyme |
| B. | EDTA |
| C. | Detergent |
| D. | NaoH |
| Answer» D. NaoH | |
| 5. |
Gram positive bacteria are highly susceptible to lysozyme treatment. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 6. |
____________ is an enzyme, which is highly produced by egg white and lachrymal glands. |
| A. | Amylases |
| B. | Lysozyme |
| C. | Invertase |
| D. | Protease |
| Answer» C. Invertase | |
| 7. |
In ________ treatment, produced basic radicals mediate a nucleophilic attack on compounds of cell wall on membrane leading to destabilization and fragmentation of membrane followed by release of enzymes. |
| A. | EDTA |
| B. | Osmotic shock |
| C. | Alkali |
| D. | Detergent |
| Answer» D. Detergent | |
| 8. |
Which of the following is not a technique for the extraction of enzymes by chemical methods? |
| A. | Alkali treatment |
| B. | Osmotic shock |
| C. | Detergent treatment |
| D. | Homogenization |
| Answer» E. | |