PHYSICAL FACTOR AFFECTING BACTERIAL GROWTH

 By-Rahul Shakya

Following factor affecting bacterial growth

  1-Temperature

• It is the most important factor that determines the rate of growth, multiplication and death of all living organisms.
• At high temp. damage microbes by denaturing proteins and enzymes of microorganisms.
• At very low temperature membranes also solidify and enzymes also do not function properly.

  2-PH Concentration

• The PH is must essential for multiplication of microorganisms.
• The microbial growth is strongly affected by the PH of the medium.

   3-WATER

• Water used as solvent in which molecules are dissolved.
• Bacteria cells consists of 80%of water

   4-LIGHT

• Phototrophs bacteria usually take or requires light source for survival 

• That's all about Physical factor affecting bacterial growth.