Question

Chemical factors affecting growth of microorganisms

Answer 1

There are a variety of environmental factors that affect microbial growth. The most important physical factors are pH, temperature, oxygen, pressure, and salinity.

Different microorganisms (microbes) need different factors in order to grow and survive. These factors are physical or chemical properties that define the environment of the microbe. An organism that has a strict requirements for specific factors in order to survive is said to be obligate for them. Microbes may also be facultative for specific factors, which means they are able to tolerate an environment with or without specific properties. There are a variety of environmental factors that affect microbial growth. The most important physical factors are pH, temperature, oxygen, pressure, and salinity.