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OCR A Biology

Phase Rate Growth Reproduction Cells Death Standard Curve

The standard growth curve of microorganisms includes lag phase, exponential phase, stationary phase, and death phase.

A curva de crescimento padrão de microrganismos inclui fase de latência, fase exponencial, fase estacionária e fase de morte.

Front standard growth curve of microorganisms
Back
  • lag phase
    • bacteria adapting to new enviro (growing, synthesising enzymes but not reproducing at optimal rate)
  • exponential phase
    • rate of bacterial reproduction at theoretical max
  • stationary phase
    • total growth rate zero (number of cells formed via binary fission equal to number of cells dying)
  • death phase
    • reproduction almost ceased and death rate increasing

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