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Discussion

During the lag 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: A

Correct answer: Microorganisms increase in size of cell and metabolic rate

In the lag phase there is no increase in cell number: the organisms are adapting to the new medium, synthesising the enzymes and intermediates they need. The cells grow larger and their metabolic rate rises, and only then does division begin.

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