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Physical and Chemical Agents

Physical and Chemical Agents
A(n)____is used to prevent infection by killing or inhibiting pathogen growth on animal tissues.

antiseptic
disinfectant
bacteriostatic agent
sanitizer

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Physical and Chemical Agents
Which of the following is best to sterilize heat labile solutions?

Pasteurization
Dry heat
Membrane filtration
Autoclave

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Physical and Chemical Agents
Which of the following was the first widely used antiseptic and disinfectant?

Chlorine
Iodine
Alcohol
Phenol

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Physical and Chemical Agents
Which of the following is a limitation of the autoclave?

It lacks the ability to inactivate viruses
It will destroy heat labile materials
It takes too long to sterilize
It lacks the ability to kill endospores

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Physical and Chemical Agents
Microbes can be removed from a liquid solution by the process of

desiccation
freeze-drying
filtration
osmosis

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Physical and Chemical Agents
Complete destruction of the microorganisms is commonly known as

disinfection
antisepsis
sterilization
none of these

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