Magnesium is not considered a growth factor for microorganisms, because growth factors are always organic compounds.

Question

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Growth factors are defined as organic compounds that are required in small amounts for the growth of certain microorganisms. Magnesium is an essential inorganic element that is required for the growth of many microorganisms, but it is not considered a growth factor because it is not an organic compound.

Magnesium Is Not Considered a Growth Factor for Microorganisms, Because