Chapter 5 Flashcards
A disinfectant nontoxic enough to be used on the skin
Antiseptic
Procedures that help prevent the accidental introduction of unwanted microbes
Aseptic Technique
Stops the growth of bacteria without killing them
Bacteriostatic
Chemcial that kills many but not all Microbes
Disinfectant
Breif heat treatment that reduces the number of spoilage microorganisms and destroys pathogens
Pasteurization
Inhibiting microbial growth to delay spoilage
Preservation
Free from all viable microbes, including Endospores & Viruses
Sterile
Destruction or removal of all microorganisms and viruses on or in a product
Sterilization
Sterilization does not include prions
True or false
True
Treatment to reduce the number of pathogens to a safe level
Decontamination
Process that reduces the number if pathogens but doesn’t indicate a specific level of control
Sanitization
The set of procedures used to prevent microorganisms from contaminating an environment is called
Aseptic Technique
The biosafety levels (BSLs) are
- Procedures for microbes not known to cause disease in healthy people
- Procedures with moderate-risk microbes with limited potential for transmission
- Procedures with pathogens that cause serious or potentially fatal disease through inhalation
- Procedures for easily transmitted deadly pathogens
What are 2 things that the government measures in the water to ensure its safe to drink
Disinfection by-products ( when chlorine reacts with naturally occuring chemicals in the water)
C. hominis a pathogen that can survive traditional disinfection techniques
______ of Bacillus, Clostridium and related species are the most resistant life forms
Endospores
These disinfectant resistant _____ & ______ of certain Intenstinal protozoan pathogens (Giardia lamblia & Cryptosporidium hominis) found in the feces can be killed by boiling
Protozoan cysts and oocysts
The waxy cell wall of __________ make them resistant to many chemical treatment.
Name an important member of this species
Mycobacteria
M. tuberculosis
