Exam 9: Controlling Microbial Growth in the Environment

Some physical methods of microbial control that work by removing microbes are just as effective as agents that kill or inhibit these microbes. Explain why this is so, and give some examples of these types of agents.

The use of high levels of salt or sugar in the preservation of food relies on the phenomenon of __________ pressure.

Which of the following would be used to sterilize a mattress?

Which of the following would NOT be bacteriostatic?

__________ may be achieved using chlorine dioxide.

Disinfectants that damage membranes include

Natural antiseptics such as pine or clove oil are examples of antimicrobial compounds called __________.

The process of freeze-drying microbes to preserve them is __________.

The endospores of which of the following microbes are used to measure the effectiveness of autoclave sterilization?

Standard methods of sterilization are not effective in inactivating

Which of the following is NOT a feature associated with filtration?

The dairy creamer used in restaurants is usually sterilized by

Which of the following statements concerning microbial death is FALSE?

An instrument that will come into contact with only the skin of a patient should be disinfected with a(n)

The chemical agents known as "quats" are used for

Hydrogen peroxide is a(n)

The process of heating milk or fruit juice to levels that kill any pathogenic microbes present is known as __________.

The process of incineration is used for

Hydrogen peroxide is an effective antiseptic.

The process of filtration is a(n)