Both ionizing and non-ionizing radiation are used to control the growth of microorganisms in clinical settings, the food industry, and in laboratories. Make sure to mark on the bottom of your plate wh...Both ionizing and non-ionizing radiation are used to control the growth of microorganisms in clinical settings, the food industry, and in laboratories. Make sure to mark on the bottom of your plate which half of the plate was exposed to UV light and incubate them at 37°C. To test the effectiveness of a chemical against pathogens, glass beads are coated with bacteria, exposed to different concentrations of germicides, and finally transferred to a growth medium.