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Physical and Chemical Agents

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

antisepsis
sterilization
disinfection
none of these

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Physical and Chemical Agents
Sweet and salty foods frequently don't require refrigeration to prevent spoilage because they have

low pH
toxic alkaline chemicals
insufficient nutrients
high concentration of solutes

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Physical and Chemical Agents
Media containing spores and thermolabile constituents are sterilized by

UV radiation
dry heat
pasteurization
tyndalization

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

Pasteurization
Dry heat
Autoclave
Membrane filtration

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Physical and Chemical Agents
All of the following are sporicidal except

alcohol
formaldehyde
ethylene oxide
glutaraldehyde

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Physical and Chemical Agents
For sterilization of which material gamma rays can be used?

Catheters
Plastic syringes
Canulas
None of these

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