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Microbiology

Week 6 quiz

Ionizing radiation involves all of the following except UV light
A toxic, odorless gas often used as a sterilizing agent in hospitals and dental officials is ethylene oxide.
Which of the following methods is the simplest heat-related method to sterilize metal? Direct flaming
High salt or sugar content/concentrations make use of __ to destroy or inhibit the growth of microorganisms. osmotic pressure
Boiling items in water for __________ minutes will kill most vegetative bacteria and viruses. 10-15
Substances that kill bacteria are referred to as __. bactericidal
Bacteria that appear red after gram staining are said to be gram-__. negative
A medium that grows several different organisms that show visible differences in colony morphology is a __ medium. differential
A culture that contains a single species of an organism is a __ culture. pure
A disinfectant is designed to be used only on __ surfaces. nonliving
Created by: rechcabrera
 

 



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