Bioreactors
Biology ⇒ Biotechnology and Applications
Bioreactors starts at 11 and continues till grade 12.
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See sample questions for grade 11
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.
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?
A biotechnology company is designing a bioreactor for the large-scale production of a recombinant protein using genetically modified bacteria. The process requires high oxygen transfer rates and efficient mixing, but the bacteria are sensitive to high shear forces. Which type of bioreactor would be most suitable for this application?
(1) Stirred tank bioreactor
(2) Airlift bioreactor
(3) Packed bed bioreactor
(4) Fluidized bed bioreactor
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.
Which of the following is a common application of plant cell bioreactors?
(1) Production of secondary metabolites
(2) Production of antibiotics
(3) Production of ethanol
(4) Production of cheese
Which of the following is a common use of microbial bioreactors?
(1) Production of antibiotics
(2) Production of plastics
(3) Production of metals
(4) Production of glass
Which of the following is a disadvantage of batch bioreactors?
(1) High risk of contamination
(2) Limited product yield per batch
(3) Difficult to control conditions
(4) All of the above
Which of the following is a key feature of a packed bed bioreactor?
(1) Contains immobilized cells or enzymes
(2) Uses mechanical agitation
(3) Is only used for animal cells
(4) Has no temperature control
Fill in the blank: In a __________ bioreactor, fresh medium is continuously added while culture liquid is continuously removed.
Fill in the blank: The __________ bioreactor uses bubbles of air to circulate the medium and cells without mechanical agitation.
Fill in the blank: The __________ is the part of the bioreactor that allows for the removal of culture for sampling or harvesting.
Fill in the blank: The __________ is the part of the bioreactor where sensors are placed to monitor parameters like pH and temperature.
True or False: Bioreactors are only used for the production of antibiotics.
True or False: Bioreactors are only used in the pharmaceutical industry.
True or False: Bioreactors can be operated at different scales, from laboratory to industrial production.
True or False: Bioreactors can be used for both aerobic and anaerobic processes.
