Assignment task: Physical methods to control microbial growth- heat, UV, osmotic pressure. Know the mechanism by which each method controls growth of microbes and be able to interpret results for all the labs. You should also know some applications of these methods.: Physical methods to control microbial growth- heat, UV, osmotic pressure. Know the mechanism by which each method controls growth of microbes and be able to interpret results for all the labs. You should also know some applications of these methods. Need Assignment Help?