Terminology: Definitions
Removing or destroying ALL microbes, including viruses, bacteria, protozoa, and fungi.
Sterilization
Spraying the tables in lab with cleaner and wiping them down is an example of _________.
Disinfection (spraying) and Degerming (wiping)
Boiling, autoclaving, pasteurization, and ultra-high temperature processing are types of ________ heat physical control methods.
Group of disinfectants/antiseptics that includes ethanol and isopropanol.
Alcohols
This Biosafety Level is used when working with moderate risk organisms such as Staphylococcus aureus and HIV
Biosafety Level 2
Removing or destroying most microbes from non-living objects
Disinfection
Autoclaving discarded petri plates and test tubes in a microbiology lab is an example of _____.
Sterilization
Method that would most likely be used to sterilize air from a hospital room used for patients with tuberculosis.
Filtration
Group of disinfectants/antiseptics that includes bleach and fluoride.
Halogens
True or False. Physical and chemical control methods work by instantly destroying the targeted microbes.
False.
Removing or destroying most microbes on living tissue
Antisepsis
Using hand sanitizer on your hands when soap and water are not available is an example of ____.
Antisepsis
Type of radiation is used to sterilize clear liquids and surfaces.
Ultra-violet (non-ionizing) radiation
Group of disinfectants/antiseptics that are typically used in conjunction with degerming.
Surfactants
Which of these would be a more effective disinfection method: Using Lysol at 10 degrees C or 45 degrees C?
45 degrees C
Treating beverages with moderate heat to remove pathogenic microbes.
Pasteurization
In health care settings, CDC guidelines state that sheets and other laundry should be washed at temperature of at least 160°F (71°C) for a minimum of 25 minutes. This is an example of _____.
Sanitization
Hyper
Peracetic acid, a chemical which destroys bacterial endospores, belongs to which category of chemical control agents?
Oxidizing agents
•Prions
•Small naked viruses
•Large naked viruses
•Enveloped viruses
Removing or destroying most microbes from non-living objects in a public setting such as a restaurant or hospital.
Sanitization
Treatments such as refrigeration and freezing don’t kill microbes, they only inhibit them. These types of treatments are referred to as microbio-__________.
Static
Name the physical control method used to sterilize medical and laboratory supplies that cannot be autoclaved.
Electron Beams
Ethylene oxide and propylene oxide are sterilizing agents that belong to this category of chemical control agents.
Gaseous agents
Put the following types of bacteria in order from MOST resistant to LEAST resistant: Endospores, Gram-negative bacteria, Gram-positive bacteria, Mycobacteria
•Endospores
•Mycobacteria
•Gram-negative bacteria
•Gram-positive bacteria