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. |
Which of the following is not an advantage of impregnated wet beads? |
| A. | Protection of the contained enzyme |
| B. | More facile recovery of the biocatalyst |
| C. | Solvent polarity |
| D. | Allowing efficient and continuous use of biphasic PBRs |
| Answer» D. Allowing efficient and continuous use of biphasic PBRs | |
| 2. |
S-shaped curve may be shifted to the left by immobilizing the enzyme within highly hydrophilic support. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 3. |
Biphasic systems may be stabilized by the use of __________ |
| A. | deuterated water |
| B. | sugar |
| C. | co-factors |
| D. | co-enzymes |
| Answer» B. sugar | |
| 4. |
Which of the following factor is not important for making the choice of organic solvents in biphasic system? |
| A. | Solvent polarity |
| B. | Ease of recovery |
| C. | Reproducible and linear |
| D. | Specific inhibitory effects |
| Answer» D. Specific inhibitory effects | |
| 5. |
What does the following equation represent? (Log ,P=Log_{10} ( frac{[Material_{octanol}]}{[Material_{water}]}) ) |
| A. | Solvent polarity |
| B. | K<sub>m</sub> |
| C. | pH |
| D. | Ionic strength |
| Answer» B. K<sub>m</sub> | |
| 6. |
Due to organic phase in biphasic system, the most important factor in the balance between stabilization and inactivation is ______________ |
| A. | solvent polarity |
| B. | inactivation of the enzyme |
| C. | stability of the enzyme |
| D. | partition coefficient |
| Answer» B. inactivation of the enzyme | |
| 7. |
In biphasic systems, the limited amount of water available considerably reduces the rate of thermoinactivation. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 8. |
One major factor that must be addressed for the use of biphasic systems in many enzyme-catalyzed reactions is ____________ |
| A. | solvent polarity |
| B. | inactivation of the enzyme |
| C. | stability of the enzyme |
| D. | partition coefficient |
| Answer» D. partition coefficient | |