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In a continuous culture system, the used medium is drained out from one side while fresh medium is added from the other. Which specific phase of the microbial growth curve is maintained by this method to achieve maximum productivity?

Options

  1. AExponential phase
  2. BStationary phase
  3. CLag phase
  4. DDecline phase

Correct answer

A. Exponential phase

Step-by-step solution

In a continuous culture system, the used medium is continuously drained out from one side while fresh medium is added from the other. This constant replenishment of nutrients and removal of waste products prevents the depletion of resources and the accumulation of toxins. As a result, the cells are maintained in their physiologically most active state, which is the log or exponential phase of the microbial growth curve, thereby achieving maximum productivity. The lag phase is the initial adaptation period, the stat

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