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Discussion

During stationary phase

  • A.Microorganisms increase in size of cell and metabolic rate
  • B.The cells start dividing and their number increase by geometric progression
  • C.Rate of multiplication and death becomes almost equal
  • D.Population of the cells decreases

Answer: C

Correct answer: Rate of multiplication and death becomes almost equal

In the stationary phase nutrients are running short and toxic products accumulating, so the rate of division falls until it exactly balances the rate of death. The viable count therefore stays level, though the cells within it are constantly being replaced. Spores and secondary metabolites are typically produced here.

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