MCQOPTIONS
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MCQOPTIONS
This section includes 7 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. |
Continuous addition of sugars in Fed-batch fermentation is done to __________ |
| A. | Produce methane |
| B. | Purify enzymes |
| C. | Degrade sewage |
| D. | Obtain antibiotics |
| Answer» C. Degrade sewage | |
| 2. |
Which of the following is not a disadvantage of continuous culture? |
| A. | Long growth periods of subtrates/microbes |
| B. | Maintenance of mixed cultures |
| C. | Requires feed-batch culturing |
| D. | Viscosity of mixture for filamentous organisms |
| Answer» C. Requires feed-batch culturing | |
| 3. |
Which of the following is not an advantage of continuous culture? |
| A. | Can be used for different reactions every day |
| B. | Little risk of infection or strain mutation |
| C. | Long growth periods of subtrates/microbes |
| D. | Eliminating the inherent down time for cleaning and sterilization |
| Answer» D. Eliminating the inherent down time for cleaning and sterilization | |
| 4. |
Mixed cultures can be maintained using chemostat cultures in _________ |
| A. | Fed-Batch culture |
| B. | Semi-Batch culture |
| C. | Batch culture |
| D. | Continuous culture |
| Answer» E. | |
| 5. |
The growth rate of the cells will be greater than the dilution rate , Is this statement applicable for decrease in biomass production? |
| A. | True |
| B. | False |
| Answer» C. | |
| 6. |
If one starts with 10,000 (104) cells in a culture that has a generation time of 2 h, how many cells will be in the culture after 4 and 48 h? |
| A. | 4.0 10<sup>4</sup> cells, 1.7 10<sup>11</sup> cells |
| B. | 4.2 10<sup>4</sup> cells, 1.1 10<sup>11</sup> cells |
| C. | 4.6 10<sup>4</sup> cells, 1.5 10<sup>11</sup> cells |
| D. | 4.8 10<sup>4</sup> cells, 1.3 10<sup>11</sup> cells |
| Answer» B. 4.2 10<sup>4</sup> cells, 1.1 10<sup>11</sup> cells | |
| 7. |
In the following equation, what is the unit of Dilution rate D ? (Given: F = dm3h-1 and V = dm3)
|
| A. | dm<sup>3</sup> |
| B. | h<sup>-1</sup> |
| C. | dmh<sup>-1</sup> |
| D. | dm<sup>3</sup>h<sup>-1</sup> |
| Answer» C. dmh<sup>-1</sup> | |