MCQOPTIONS
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MCQOPTIONS
This section includes 15 Mcqs, each offering curated multiple-choice questions to sharpen your Protein Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which of the following is not a constituent enzyme of the pectinase group of enzymes? |
| A. | Pectin methyl esterase |
| B. | Pectin lyase |
| C. | Polygalacturonase |
| D. | Pectin ethyl esterase |
| Answer» E. | |
| 2. |
Which of the following does not show that enzymes are proteins? |
| A. | The proportion of C, H, N, and S |
| B. | Susceptibility to denaturation |
| C. | Enzymes act as ampholytes |
| D. | High molecular weight |
| Answer» E. | |
| 3. |
Which of the following is the number of units of enzyme activity per milligram of total protein present? |
| A. | Katal |
| B. | Turnover number |
| C. | International unit |
| D. | Specific activity |
| Answer» E. | |
| 4. |
Which of the following is the way of expressing enzyme activity by measuring the amount of enzyme that catalyzes the formation of one micromole of product in one minute under optimal conditions of pH, temperature and ionic strength? |
| A. | Specific activity |
| B. | Katal |
| C. | Turnover number |
| D. | International unit |
| Answer» E. | |
| 5. |
Which of the following is not an application of pectinase? |
| A. | Tea and coffee processing |
| B. | Extraction of vegetable oil |
| C. | Processing of animal feed |
| D. | Recycling of plastics |
| Answer» E. | |
| 6. |
Seven Katal is equivalent to how many International units of enzymes? |
| A. | 7 x 10<sup>6</sup> IU |
| B. | 21 x 10<sup>7</sup> IU |
| C. | 70 x 10<sup>6</sup> IU |
| D. | 42 x 10<sup>7</sup> IU |
| Answer» E. | |
| 7. |
Which of the following is not a property of enzymes? |
| A. | Catalytic power |
| B. | Specificity |
| C. | Acts as ampholytes |
| D. | Irreversibility |
| Answer» E. | |
| 8. |
Enzymes are specific in nature. |
| A. | False |
| B. | True |
| Answer» C. | |
| 9. |
Which of the following is not an industrially important enzyme? |
| A. | Pectinase |
| B. | Cellulase |
| C. | Lysozyme |
| D. | Arginase |
| Answer» E. | |
| 10. |
Which of the following property shows that enzymes are proteins? |
| A. | Catalytic property |
| B. | Structural property |
| C. | Molecular weight |
| D. | The proportion of C, H, N, and S |
| Answer» E. | |
| 11. |
Which of the following is not a way to measure enzyme activity? |
| A. | Katal |
| B. | Turnover number |
| C. | International unit |
| D. | Unit of enzyme activity |
| Answer» E. | |
| 12. |
The amount of enzyme is expressed in terms of its activity. |
| A. | False |
| B. | True |
| Answer» C. | |
| 13. |
Which of the following is not true for enzymes? |
| A. | Colloidal nature |
| B. | High molecular weight |
| C. | Susceptible to denaturation |
| D. | Dialyzable |
| Answer» E. | |
| 14. |
Pectinase account for how much percent of global industrial enzymes produced? |
| A. | 50 percent |
| B. | 60 percent |
| C. | 4 percent |
| D. | 10 percent |
| Answer» E. | |
| 15. |
Which of the following is an industrially important enzyme? |
| A. | Arginase |
| B. | Pyruvate carboxylase |
| C. | Pyruvate kinase |
| D. | Pectinases |
| Answer» E. | |