MCQOPTIONS
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MCQOPTIONS
This section includes 22 Mcqs, each offering curated multiple-choice questions to sharpen your Bioprocess Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Organisms in which phase are adapting to the new environment? |
| A. | Lag phase |
| B. | Death phase |
| C. | Exponential phase |
| D. | Stationary phase |
| Answer» B. Death phase | |
| 2. |
In fed-batch culture, the feed solution is ________ |
| A. | Less concentrated |
| B. | Highly concentrated |
| C. | Highly diluted |
| D. | Diluted |
| Answer» C. Highly diluted | |
| 3. |
Fed-batch culture is not used for substrate inhibition. |
| A. | True |
| B. | False |
| Answer» C. | |
| 4. |
Fed-batch culture is superior to conventional batch culture. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 5. |
In a fixed-volume fed- batch culture μ declines when? |
| A. | Biomass increases |
| B. | Biomass decreases |
| C. | Biomass remains constant |
| D. | Biomass is equal to zero |
| Answer» B. Biomass decreases | |
| 6. |
Quasi – steady state in fed batch is when? |
| A. | Growth rate remains constant |
| B. | Dilution remains constant |
| C. | Growth rate changes variably |
| D. | μ remains constant |
| Answer» D. μ remains constant | |
| 7. |
What do you mean by “Quasi steady state”? |
| A. | Cell concentration remains virtually constant |
| B. | Cell concentration is virtually variable |
| C. | Total biomass remains constant with time |
| D. | Total biomass decreases with time |
| Answer» B. Cell concentration is virtually variable | |
| 8. |
FED-BATCH_CULTURE_IS_NOT_USED_FOR_SUBSTRATE_INHIBITION.?$ |
| A. | True |
| B. | False |
| Answer» C. | |
| 9. |
Organisms in which phase are adapting to the new environment?$ |
| A. | Lag phase |
| B. | Death phase |
| C. | Exponential phase |
| D. | Stationary phase |
| Answer» B. Death phase | |
| 10. |
In_fed-batch_culture,_the_feed_solution_is_________$ |
| A. | Less concentrated |
| B. | Highly concentrated |
| C. | Highly diluted |
| D. | Diluted |
| Answer» C. Highly diluted | |
| 11. |
In the fed-batch method the critical elements of the nutrient solution are added in which amount of concentrations at the beginning of the fermentation? |
| A. | Small |
| B. | Large |
| C. | Very large |
| D. | Little |
| Answer» B. Large | |
| 12. |
Conversion of substrate to ammonia and organic acid is by _______ |
| A. | Nitrification |
| B. | Proteolysis |
| C. | Peptidase |
| D. | Deaminase |
| Answer» B. Proteolysis | |
| 13. |
Conversion of substrate to amino acids is called __________ |
| A. | Nitrification |
| B. | Proteolysis |
| C. | Peptidase |
| D. | Deaminase |
| Answer» C. Peptidase | |
| 14. |
Which type of media is used for fungi cultivation? |
| A. | Non nutrient agar |
| B. | Sabouraud’s dextrose agar |
| C. | MacConkey’s agar |
| D. | RPMI |
| Answer» C. MacConkey‚Äö√Ñ√∂‚àö√ë‚àö¬•s agar | |
| 15. |
Fed-batch culture is superior to conventional batch culture? |
| A. | True |
| B. | False |
| Answer» B. False | |
| 16. |
What will be the condition when pH will be high? |
| A. | Glucose is low |
| B. | Glucose is equal with biomass concentration |
| C. | Glucose is high with biomass concentration |
| D. | Excess of glucose |
| Answer» B. Glucose is equal with biomass concentration | |
| 17. |
Dilution refilling is done with______ |
| A. | Non- sterile water |
| B. | Sterile water |
| C. | Microbes |
| D. | Waste |
| Answer» C. Microbes | |
| 18. |
In a fixed-volume fed- batch culture μ declines when?$ |
| A. | Biomass increases |
| B. | Biomass decreases |
| C. | Biomass remains constant |
| D. | Biomass is equal to zero |
| Answer» B. Biomass decreases | |
| 19. |
Quasi – steady state in fed batch is when?$ |
| A. | Growth rate remains constant |
| B. | Dilution remains constant |
| C. | Growth rate changes variably |
| D. | μ remains constant |
| Answer» D. ‚âà√≠¬¨‚à´ remains constant | |
| 20. |
What do you mean by “Quasi steady state”?$ |
| A. | Cell concentration remains virtually constant |
| B. | Cell concentration is virtually variable |
| C. | Total biomass remains constant with time |
| D. | Total biomass decreases with time |
| Answer» B. Cell concentration is virtually variable | |
| 21. |
Which of the following Fed-batch system is described as a fixed volume? |
| A. | The same medium used to establish the batch culture |
| B. | A solution of the limiting substrate |
| C. | A concentrated solution of the limiting substrate |
| D. | A very concentrated solution of the limiting substrate |
| Answer» E. | |
| 22. |
A concentrated solution of the limiting substrate is added in fed-batch at a rate? |
| A. | Greater than the solution of the limiting substrate and the same medium used to establish the batch culture |
| B. | Less than the solution of the limiting substrate and the same medium used to establish the batch culture |
| C. | Equal to the solution of the limiting substrate and to the same medium used to establish the batch culture |
| D. | Negligible to the solution of the limiting substrate and to the same medium used to establish the batch culture |
| Answer» C. Equal to the solution of the limiting substrate and to the same medium used to establish the batch culture | |