Answer the following statements true (T) or false (F)

1. In an autoclave, microorganisms are killed by ethylene oxide.
2. The goal of disinfection is to kill all microorganisms.
3. It is not possible to culture protozoa in the laboratory.
4. Rapid freezing, using liquid nitrogen, is an excellent method of killing microorganisms.
5. Microorganisms can be killed by direct exposure to ultraviolet light.


1. FALSE
2. FALSE
3. FALSE
4. FALSE
5. TRUE

Biology & Microbiology

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