MCQOPTIONS
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MCQOPTIONS
This section includes 17 Mcqs, each offering curated multiple-choice questions to sharpen your Separation Processes knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
What is the overall percentage yield for penicillin manufacturing? |
| A. | 20% |
| B. | 30% |
| C. | 40% |
| D. | 50% |
| Answer» B. 30% | |
| 2. |
Which of the following process is not employed to distinguish between contaminants and the product based on physiochemical features? |
| A. | Filtration |
| B. | Batch adsorption |
| C. | Isoatachoporesis |
| D. | Crystallization |
| Answer» E. | |
| 3. |
What is the purpose of fluid-solid separations and what are the species removed? |
| A. | Purpose: clarify target species; Removes: culture media, fermentation broth |
| B. | Purpose: extract target from cells; removes: small molecules, proteins |
| C. | Purpose: Preserve target species ; Removes: Buffer solutions |
| D. | Purpose: Fractionate target species; Removes: unrelated solutes ,small molecules. |
| Answer» B. Purpose: extract target from cells; removes: small molecules, proteins | |
| 4. |
WHAT_IS_THE_PURPOSE_OF_FLUID-SOLID_SEPARATIONS_AND_WHAT_ARE_THE_SPECIES_REMOVED??$ |
| A. | Purpose: clarify target species; Removes: culture media, fermentation broth |
| B. | Purpose: extract target from cells; removes: small molecules, proteins |
| C. | Purpose: Preserve target species ; Removes: Buffer solutions |
| D. | Purpose: Fractionate target species; Removes: unrelated solutes ,small molecules. |
| Answer» B. Purpose: extract target from cells; removes: small molecules, proteins | |
| 5. |
What is the overall percentage yield for penicillin manufacturing?$ |
| A. | 20% |
| B. | 30% |
| C. | 40% |
| D. | 50% |
| Answer» B. 30% | |
| 6. |
Which of the following process is not employed to distinguish between contaminants and the product based on physiochemical features?$ |
| A. | Filtration |
| B. | Batch adsorption |
| C. | Isoatachoporesis |
| D. | Crystallization |
| Answer» E. | |
| 7. |
What is the use of batch electrophoresis in procedure of purification of bioproduct? |
| A. | It gives high resolution carbohydrates |
| B. | It purifies completely |
| C. | It gives high resolution protein content |
| D. | The targeted product is concentrated by batch electrophoresis |
| Answer» D. The targeted product is concentrated by batch electrophoresis | |
| 8. |
Which of the following is also a process for penicillin recovery? |
| A. | Adsorption on activated carbon |
| B. | Direct crystallization |
| C. | Degumming |
| D. | Distillation |
| Answer» B. Direct crystallization | |
| 9. |
What is the purpose of solute- solute separations and what are the species removed? |
| A. | Purpose: clarify target species; Removes: culture media, fermentation broth |
| B. | Purpose: extract target from cells; removes: small molecules, proteins |
| C. | Purpose: Preserve target species ; Removes: Buffer solutions |
| D. | Purpose: Fractionate target species; Removes: unrelated solutes ,small molecules. |
| Answer» E. | |
| 10. |
If the mass fed to the separation process was 460Kg and the mass recovered was 422Kg, what is the % yield? |
| A. | 93.77% |
| B. | 8.2% |
| C. | 91,73 % |
| D. | 9% |
| Answer» D. 9% | |
| 11. |
If the bioproduct mass is 113Kg and the impurities are 500g, what is the purity of the bioproduct? |
| A. | 99.12% |
| B. | 99.55% |
| C. | 0.004% |
| D. | 98.68% |
| Answer» C. 0.004% | |
| 12. |
Which of the following is an incorrect difference between prokaryotic and eukaryotic cell? |
| A. | Eukaryotic cell has a cell wall while prokaryotic does not |
| B. | Eukaryotic cell has less developed nucleus than prokaryotic cells |
| C. | Prokaryotic cell can be aerobic while eukaryotic cell is mostly anaerobic |
| D. | Prokaryotic cell does not have membrane bound organelles while eukaryotic cell has membrane bound organelles |
| Answer» D. Prokaryotic cell does not have membrane bound organelles while eukaryotic cell has membrane bound organelles | |
| 13. |
What are nucleotides? |
| A. | Nitrogenous bases covalently bonded to triose sugar |
| B. | Nitrogenous bases covalently bonded to quadrose sugar |
| C. | Nitrogenous bases covalently bonded to pentose sugar |
| D. | Nitrogenous bases covalently bonded to hexose sugar |
| Answer» D. Nitrogenous bases covalently bonded to hexose sugar | |
| 14. |
What is the molecular weight range of proteins? |
| A. | 1000 DA- 10000 DA |
| B. | 10000 Da- 100000 Da |
| C. | 100000 Da-1000000 Da |
| D. | 100000Da – 10000000 Da |
| Answer» C. 100000 Da-1000000 Da | |
| 15. |
What are secondary metabolites? |
| A. | Synthesized during primary phase of cell growth |
| B. | Synthesized during secondary phase of cell growth |
| C. | Synthesized during the stationary phase |
| D. | Synthesized during growth phase of cell |
| Answer» C. Synthesized during the stationary phase | |
| 16. |
What are primary metabolites? |
| A. | Synthesized during primary phase of cell growth |
| B. | Synthesized during secondary phase of cell growth |
| C. | Synthesized during death phase of cell growth |
| D. | Synthesized during growth phase of cell |
| Answer» B. Synthesized during secondary phase of cell growth | |
| 17. |
Which of the following is not a classification of biological species? |
| A. | Bio-molecules |
| B. | Small molecules |
| C. | Bio-Polymers |
| D. | Cellular particulates |
| Answer» B. Small molecules | |