| 1. | In the stationary phase |
| a. | growth is proportional to death |
| b. | growth rate is equal to death rate |
| c. | growth rate is lesser than death rate |
| d. | no co-relation exist between death rate and growth rate |
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Answer: (b).growth rate is equal to death rate
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| 2. | Which of the following is an example of a mathematical model? |
| a. | Volume of cuboid = length x breadth x height |
| b. | The Monod Model |
| c. | The Michaelis Menten Equation |
| d. | All of the above |
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Answer: (d).All of the above
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| 3. | Biomass concentrations during fermentation is |
| a. | diluting the samples to optical density less than 0.3 |
| b. | monitored by controlling the changes in biomass concentrations |
| c. | considering that optical density is proportional to the surface area of the biomass in the sample |
| d. | all of the above |
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Answer: (d).all of the above
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| 4. | Chemostats work on the principle of |
| a. | maintaining constant volume of culture medium |
| b. | maintaining continuous flow of nutrients |
| c. | maintaining uniform nutrients concentration |
| d. | operating at higher pressure |
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Answer: (c).maintaining uniform nutrients concentration
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| 5. | During the exponential phase the maximum specific growth rate equals specific growth rate as |
| a. | concentration of the growth limiting substrate is much less than the monod constant |
| b. | concentration of growth limiting substrate is much greater than the monod constant |
| c. | specific growth rate increases exponentially |
| d. | concentration of the growth limiting substrate is equal to the monod constant |
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Answer: (b).concentration of growth limiting substrate is much greater than the monod constant
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