Biology · Principles and Processes in Biotechnology

In a continuous culture system, what is the primary operational advantage that maintains cells in their physiologically most active log/exponential phase?

1. Used medium is retained to enrich secondary metabolites
2. Used medium is drained out from one side while fresh medium is added from the other
3. Nutrient concentration is kept at zero throughout the culture period
4. Oxygen supply is completely stopped to induce anaerobic respiration