AAMI Introduction to Microbiology (Units 4
& 5) Midterm Exam: Questions & Verified
Answers Study Guide
1). Sterilization
Correct Answers👍👍: the process of completely removing or destroying all life
forms, including viruses and spores, and/or their products both in and on the
substance.
2). Disinfection
Correct Answers👍👍: the destruction of pathogenic or infectious agents by
chemical or physical means applied to an inanimate object.
3). Antisepsis
Correct Answers👍👍: the process by which microbial growth is inhibited on
living tissue to prevent infection.
4). Which process destroys microbes but is safe to use on human tissue?
Correct Answers👍👍: Antisepsis
5). Which is achieved through embalming, sterilization or disinfection?
Correct Answers👍👍: Disinfection
6). Physical Means
Correct Answers👍👍: the method of controlling the growth of microorganisms
by scrubbing and the use of various forms of heat.
7). Chemical Means
Correct Answers👍👍: the method of controlling the growth of microorganisms
by the use of disinfectants.
8). Scrubbing
Correct Answers👍👍: a manual process by which microorganisms are
removed from the surface.
, 9). Heat
Correct Answers👍👍: the most effective method of sterilization. It can be
applied as dry or moist heat.
10). Dry Heat
Correct Answers👍👍: kills microorganisms by denaturing or coagulating the
proteins they contain.
11). Coagulation of protein occurs more readily when the protein is in a _____
state.
Correct Answers👍👍: well hydrated
12). Incineration
Correct Answers👍👍: a form of intense dry heat which is very effective in
destroying infectious material of various kinds. Provides complete destruction
of an object.
13). Moist heat kills microorganisms by _____ of their proteins.
Correct Answers👍👍: coagulation
14). The most common method of moist heat sterilization is _____ .
Correct Answers👍👍: autoclaving (steam under pressure)
15). The standard temperature and time for autoclaving is _____ at 15 psi for
_____ minutes.
Correct Answers👍👍: 121°C (250°F), 15–20 minutes
16). Boiling water is considered a _____ process, not sterilization, because it
does not kill spores.
Correct Answers👍👍: disinfection
17). Pasteurization is a form of _____ heat treatment that reduces spoilage
organisms but does not sterilize.
Correct Answers👍👍: moist
18). The term “tyndallization” refers to:
Correct Answers👍👍: intermittent sterilization using steam at 100°C on three
successive days
& 5) Midterm Exam: Questions & Verified
Answers Study Guide
1). Sterilization
Correct Answers👍👍: the process of completely removing or destroying all life
forms, including viruses and spores, and/or their products both in and on the
substance.
2). Disinfection
Correct Answers👍👍: the destruction of pathogenic or infectious agents by
chemical or physical means applied to an inanimate object.
3). Antisepsis
Correct Answers👍👍: the process by which microbial growth is inhibited on
living tissue to prevent infection.
4). Which process destroys microbes but is safe to use on human tissue?
Correct Answers👍👍: Antisepsis
5). Which is achieved through embalming, sterilization or disinfection?
Correct Answers👍👍: Disinfection
6). Physical Means
Correct Answers👍👍: the method of controlling the growth of microorganisms
by scrubbing and the use of various forms of heat.
7). Chemical Means
Correct Answers👍👍: the method of controlling the growth of microorganisms
by the use of disinfectants.
8). Scrubbing
Correct Answers👍👍: a manual process by which microorganisms are
removed from the surface.
, 9). Heat
Correct Answers👍👍: the most effective method of sterilization. It can be
applied as dry or moist heat.
10). Dry Heat
Correct Answers👍👍: kills microorganisms by denaturing or coagulating the
proteins they contain.
11). Coagulation of protein occurs more readily when the protein is in a _____
state.
Correct Answers👍👍: well hydrated
12). Incineration
Correct Answers👍👍: a form of intense dry heat which is very effective in
destroying infectious material of various kinds. Provides complete destruction
of an object.
13). Moist heat kills microorganisms by _____ of their proteins.
Correct Answers👍👍: coagulation
14). The most common method of moist heat sterilization is _____ .
Correct Answers👍👍: autoclaving (steam under pressure)
15). The standard temperature and time for autoclaving is _____ at 15 psi for
_____ minutes.
Correct Answers👍👍: 121°C (250°F), 15–20 minutes
16). Boiling water is considered a _____ process, not sterilization, because it
does not kill spores.
Correct Answers👍👍: disinfection
17). Pasteurization is a form of _____ heat treatment that reduces spoilage
organisms but does not sterilize.
Correct Answers👍👍: moist
18). The term “tyndallization” refers to:
Correct Answers👍👍: intermittent sterilization using steam at 100°C on three
successive days
