6.1.6

Factors Affecting Microorganism Growth

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Factors Affecting Microorganism Growth

The rate at which microorganisms like yeast and bacteria grow depends on various factors.

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Temperature

  • Growth rates are generally highest in warm temperatures.
  • Keeping food in the fridge or freezer slows that rate at which microorganisms divide and respire.
  • When bread is 'proved' it is kept warm so that the yeast respire quickly, producing carbon dioxide to make the bread rise.
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Moisture availability

  • Microorganism growth is generally fastest in moist conditions.

Jump to other topics

1The Nature & Variety of Living Organisms

2Structure & Functions in Living Organisms

3Organism Functions

3.1Respiration

3.2Gas Exchange

3.3Transport

3.4Excretion

3.5Coordination & Response

4Reproduction & Inheritance

5Ecology

6Biological Resources

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