Question

Write conditions important for multiplication of microorganisms in short

Answer 1

As all living organisms, microorganisms also require a combination of various physical and chemical factors for their growth and multiplication. Although individual cells approximately double in size during their lifetime this change is not very significant. Microbial growth actually refers to increase in numbers of the cells. The requirements for microbial growth can be divided into two main categories: physical and chemical.

Physical aspects include temperature, pH, and osmotic pressure.

Chemical requirements macromolecules (carbon, nitrogen, hydrogen, sulfur, phosphorus, oxygen) and micro molecules (trace elements and organic growth factors as magnesium, potassium, sodium, calcium and iron in their ionised forms)

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