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biology 0610printed 274 · PDF 274
328 pagesrevision 46933
printed 274 · PDF 274
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3.
Stationary phase: The next phase is called the stationary phase. There may
not be enough food for the bacteria and they may not be able to reproduce fast
enough. Competition for food and increased ethanol production will kill yeast cells as
fast as they produce.
4.
Death phase: the last phase is called the death phase. The death rate
overtakes the birth rate and the population starts decreasing because food may be
running out or the population may be too large to be sustained.