Question:
Chemostat is a type of ________.
Chemostat is a type of ________.
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In a chemostat, the specific growth rate of the cells is controlled by the dilution rate.
Updated On: Jul 9, 2026
- \( \text{Batch reactor} \)
- \( \text{Continuous reactor} \)
- \( \text{Fed-batch} \)
- \( \text{Plug flow reactor} \)
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The Correct Option is B
Solution and Explanation
Concept:
Bioreactors are operated in different modes to control the environment for microbial growth.
• Batch systems are closed; nothing is added or removed during the process.
• Continuous systems allow for a constant exchange of media and products.
Step 1: Mechanism of a Chemostat.
A chemostat is a bioreactor to which fresh medium is continuously added. Simultaneously, culture liquid containing left-over nutrients, metabolic end products, and microorganisms is continuously removed.
Step 2: Achieving Steady State.
By keeping the rate of addition and removal the same, the culture volume remains constant. This allows the population to reach a "steady state," where cell density and nutrient levels stay uniform over time. Because of this ongoing flow, it is a classic example of a continuous stirred-tank reactor (CSTR) or Continuous reactor. Final Answer: A chemostat is a type of Continuous reactor.
• Batch systems are closed; nothing is added or removed during the process.
• Continuous systems allow for a constant exchange of media and products.
Step 1: Mechanism of a Chemostat.
A chemostat is a bioreactor to which fresh medium is continuously added. Simultaneously, culture liquid containing left-over nutrients, metabolic end products, and microorganisms is continuously removed.
Step 2: Achieving Steady State.
By keeping the rate of addition and removal the same, the culture volume remains constant. This allows the population to reach a "steady state," where cell density and nutrient levels stay uniform over time. Because of this ongoing flow, it is a classic example of a continuous stirred-tank reactor (CSTR) or Continuous reactor. Final Answer: A chemostat is a type of Continuous reactor.
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