Bioreactors
Biology ⇒ Biotechnology and Applications
Bioreactors starts at 11 and continues till grade 12.
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See sample questions for grade 11
A bioreactor is operated in batch mode with an initial glucose concentration of 20 g/L. After 24 hours, the glucose concentration drops to 2 g/L. What is the average rate of glucose consumption per hour?
Describe one way contamination can be prevented in a bioreactor.
Describe the main difference between aerobic and anaerobic bioreactor processes.
Describe the main purpose of a sparger in a bioreactor.
Describe the role of the agitator in a bioreactor.
Explain the importance of agitation speed in a stirred tank bioreactor.
Explain the main difference between a batch and a fed-batch bioreactor.
Explain why oxygen transfer is critical in aerobic bioreactor processes.
Explain why pH control is important in a bioreactor.
Name two parameters that are commonly monitored and controlled in a bioreactor.
State one advantage of using a continuous bioreactor over a batch bioreactor.
What is a bioreactor?
What is the function of a cooling jacket in a bioreactor?
What is the main advantage of using a fed-batch bioreactor?
A continuous bioreactor is operated at a dilution rate of 0.2 h-1. If the working volume of the bioreactor is 500 L, calculate the flow rate (in L/h) at which fresh medium should be added to the reactor.
A researcher observes that the dissolved oxygen level in a bioreactor drops significantly during the exponential growth phase of a microbial culture. Suggest two possible reasons for this observation and propose one solution to address the issue.
Describe the role of foam control in bioreactor operation and explain one method used to manage excessive foaming.
Explain how the design of a bioreactor can influence the scale-up process from laboratory to industrial production, and discuss two challenges that may arise during scale-up.
