World of Microorganisms (23)

Science

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Factors that affect the growth of microorganisms - Humidity (2)

Dry conditions cause microorganism to become less active and retard their growth

Factors that affect the growth of microorganisms - Light (1)

Microorganisms which possess chlorophyll require light to carry out photosynthesis

Factors that affect the growth of microorganisms - Light (2)

Microorganism such as fungi and bacteria grow better in the dark

Factors that affect the growth of microorganisms - Light (3)

Exposure to ultraviolet can kills microorganisms

Factors that affect the growth of microorganisms - Temperature (1)

Temperature of 35°C – 40°C are the optimum temperatures for the growth of microorganisms

Factors that affect the growth of microorganisms - Temperature (2)

Low temperatures such as in refrigerator retard the growth of microorganisms

Factors that affect the growth of microorganisms - Temperature (3)

Temperatures which are too high can kill microorganisms

Factors that affect the growth of microorganisms - pH value (1)

pH 7 (neutral pH) is the optimum pH value for the growth of most microorganisms

Factors that affect the growth of microorganisms - pH value (2)

There are certain microorganism that can live in slightly acidic or alkaline enviroments

Factors that affect the growth of microorganisms - Nutrient (1)

The growth rate of microorganisms increases with the presence of sufficient nutrients

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