hw 3

______ is the destruction of most microbes using chemicals on a living surface such as the skin.

Antisepsis

are chemical agents applied directly to body surfaces to inhibit vegetative pathogens.

Antiseptics

Which microbial agent is the most resistant to physical and chemical control methods?

Bacterial endospores

Disinfectants are normally used only on inanimate objects because they can be toxic or harmful to-----and other----tissues

Blank 1: human Blank 2: animal

______ is the physical removal of surface oils, debris, and soil from skin to reduce the microbial load.

Degermation

is the physical removal of surface oils, debris, and soil from skin to reduce the microbial load.

Degermation

The microbial agents that are least resistant to physical and chemical control methods include:

Enveloped viruses Bacterial vegetative cells

Which of the following should be considered when initially choosing a method of microbial control?

Is sterilization needed? Will it penetrate effectively? Is the item reusable or disposable? Can it withstand physical or chemical treatments? Is it safe? Is it cost and labor-efficient?

Sterilization is:

Only necessary for certain groups of microbes Generally reserved for inanimate objects

The four general cellular targets of antimicrobial agents are

Protein function The cell membrane Nucleic acid synthesis The cell wall

______ is a decontamination technique that mechanically removes microorganisms and debris from inanimate objects such as utensils to reduce contamination to safe levels.

Sanitization

is a decontamination technique that mechanically removes microorganisms and debris from inanimate objects to reduce contamination to safe levels

Sanitization

is a decontamination technique that mechanically removes microorganisms and debris from inanimate objects to reduce contamination to safe levels.

Sanitization

is defined as growth of microorganisms in the blood or other tissues.

Sepsis

----is the destruction of all microbial life, whereas----destroys most microbial life, thus reducing contamination on inanimate surfaces.

Sterilization disinfection

All of the following describe the typical microbial population targeted by antimicrobial drugs EXCEPT:

Uniform populations of like microbes

A sterile object is free of ______.

all viable microorganisms and viruses

Any process or agent that inhibits bacterial growth is referred to as .

bacteriostatic

The primary targets of microbial control are microorganisms that cause ______ or ______.

disease food spoilage

is the use of a physical process or a chemical to destroy vegetative pathogens but not bacterial endospores, usually on inanimate surfaces.

disinfection

Sepsis is defined as

growth of microorganisms in the blood or other tissues

Disinfectants are normally used only on inanimate objects because they can be toxic or harmful to and other tissues Listen to the complete question

human , animal

Disinfectants are normally used only on inanimate objects because they can be toxic or harmful to and other tissues

human and animal

Sterilization of the skin:

is highly dangerous and impractical

Disinfection destroys:

only vegetative bacterial cells

The four general cellular targets of antimicrobial agents are the cell wall, the cell membrane, nucleic acid synthesis, and .

proteins

Which suffixes indicates the ability to prevent the growth of microorganisms?

static -stasis

An object is if it is free of all viable microorganisms including viruses.

sterile

A process that completely removes or destroys all viable microorganisms, including viruses, from an object or habitat is referred to as

sterilization

Disinfectants are normally only used on inanimate objects because

the high concentrations needed are harmful to living tissues