Practical Medical Microbiology Lab Sterilization and Disinfection Quiz

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What is the main difference between sterilization and disinfection?

Sterilization and disinfection both use chemical solutions to eliminate most pathogenic microorganisms, but sterilization also kills bacterial spores

Sterilization only eliminates most pathogenic microorganisms but not bacterial spores, while disinfection kills all microorganisms, including bacterial spores

Sterilization and disinfection both kill all microorganisms, including bacterial spores, but sterilization is achieved by physical means and disinfection is achieved by chemical means

Sterilization kills all microorganisms, including bacterial spores, while disinfection eliminates most pathogenic microorganisms but not bacterial spores (correct)

Which of the following is an example of asepsis?

Applying antiseptics topically on animate surfaces

Lowering microbial counts in public settings to prevent transmission

Using bacteriocidal agents on inanimate objects

Absence of significant contamination (correct)

What distinguishes bacteriocidal agents from bacteriostatic agents?

Bacteriocidal agents and bacteriostatic agents both kill bacteria, including endospores, but bacteriocidal agents also inhibit the growth of bacteria

Bacteriocidal agents and bacteriostatic agents are both used to prevent infection on animate surfaces

Bacteriocidal agents only inhibit the growth of bacteria, while bacteriostatic agents kill bacteria, including endospores

Bacteriocidal agents kill bacteria, including endospores, while bacteriostatic agents inhibit the growth of bacteria but do not necessarily kill them (correct)

What does sepsis indicate in microbiology?

Bacterial contamination Signup and view all the answers

What is the purpose of sanitization in public settings?

To prevent transmission by lowering microbial counts to a safe level Signup and view all the answers

Which statement best describes antiseptics?

Agents that prevent infection by inhibiting the growth of microorganisms and can be applied topically on animate surfaces Signup and view all the answers

Which method is responsible for spontaneous sterilization in natural conditions?

Sunlight Signup and view all the answers

Which method is unreliable for sterilizing spores?

Drying Signup and view all the answers

What is the main purpose of filtration in microbiology?

Removing microorganisms from heat-sensitive solutions Signup and view all the answers

What type of radiation has greater capacity to induce lethal changes in the cell's genome (DNA)?

Ionizing rays Signup and view all the answers

Which dry heat method includes sterilization using a Bunsen flame till the article becomes red hot?

Red heat Signup and view all the answers

At what temperature is the holding method employed for pasteurization in the food and dairy industry?

$63C°$ Signup and view all the answers

Which method is used to sterilize all glassware at high temperatures?

$180C°$/30 min Signup and view all the answers

What is the main action of moist heat on microorganisms?

Denaturation of proteins Signup and view all the answers

Which type of filtration is used for removing microorganisms from air?

Filtration using high efficiency particulate air filters Signup and view all the answers

What is the most common and excellent method for treating infectious waste in hospitals?

Incineration Signup and view all the answers

Practical Medical Microbiology Lab Sterilization and Disinfection Quiz

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