What are the two main goals of microbial control? - Answer-1) Destroy and reduce the transmission of pathogens
2) Reduce or eliminate contaminating microbes from food, water, swimming pools, etc
(PP$$)
(REDUCTION OF MICROORGANISMS)
What are antimicrobial agents? - Answer-a chemical compo...
Chapter 5 (MCB 3020) EXAM 4
Questions and Answers
What are the two main goals of microbial control? - Answer-1) Destroy and reduce the
transmission of pathogens
2) Reduce or eliminate contaminating microbes from food, water, swimming pools, etc
(PP$$)
(REDUCTION OF MICROORGANISMS)
What are antimicrobial agents? - Answer-a chemical compound that kills or inhibits the
growth of microorganisms (PP)
(REDUCTION OF MICROORGANISMS)
Several antimicrobial agents are used to prevent the growth of human pathogens on
inanimate surfaces and on external body surfaces.
-These include? - Answer-1) sterilants
2) disinfectants
3) sanitizers
4) antiseptics
(PP$$)
(DEGREE OF REMOVAL OF MICROORGANISMS)
What is sterilization? - Answer-the complete removal or destruction of all microbes
-Even spores and viruses are removed
(PP$$)
(DEGREE OF REMOVAL OF MICROORGANISMS)
In sterilization, chemicals are often used which are referred to as? - Answer-sterilants
(PP$$)
(DEGREE OF REMOVAL OF MICROORGANISMS)
Sterilants destroy all microorganisms, including? - Answer-endospores (PP)
, (DEGREE OF REMOVAL OF MICROORGANISMS)
Chemical sterilants are used for? - Answer-decontamination or sterilization in situations
where it is impractical or impossible to use heat or radiation.
-Hospitals, clinics, and laboratories, for example, must routinely decontaminate and
sterilize heat-sensitive materials such as thermometers, lensed instruments,
polyethylene tubing, catheters, and reusable medical and dental equipment.
(TB)
(DEGREE OF REMOVAL OF MICROORGANISMS)
What is the only process that kills or removes microorganisms? - Answer-Only
sterilization—the killing or removal of all microorganisms (including viruses)—ensures
that this is the case (TB)
(DEGREE OF REMOVAL OF MICROORGANISMS)
Methods for inhibiting microbial growth include? - Answer-1) decontamination
2) disinfection
(TB)
(DEGREE OF REMOVAL OF MICROORGANISMS)
What is decontamination? - Answer-the treatment of an object or surface to make it safe
to handle
-Decontamination can be as simple as wiping off food utensils to remove food
fragments (and their attached organisms) before using them (TB)
(DEGREE OF REMOVAL OF MICROORGANISMS)
What is disinfection? - Answer-the killing, inhibition or removal of disease causing
microbes (PP$$)
-Also reduces the total microbial population (PP)
-a process that directly targets pathogens although it may not eliminate all
microorganisms (TB)
(DEGREE OF REMOVAL OF MICROORGANISMS)
Disinfection requires agents called? - Answer-disinfectants that actually kill
microorganisms or severely inhibit their growth
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