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Microbiology Test 01
Bateriology Test 1
Question | Answer |
---|---|
What is a Bacteriostatic Agent? | It inhibits growth of Bacteria |
What is a Germicide? | An Agent killing germs |
What is Sterilization? | Destruction of all Life (spores) |
What is a Disinfection? | Reduction of pathogens on an inanimate surface |
What is Sanitization? | Safe reduction of in the number of organisms |
What is an Antisepsis? | Disinfection of pathogens on living tissue |
What are 3 Physical Methods to Control Microorganisms? | Heat Filtration and Radiation |
What are the 6 Chemical Methods to Control Microorganisms? | Alcohol, Aldehyde, Halogens, Heavy Metals, Phenol, and Gases |
How many Bio Safety Levels are there? | 4 |
Bio Safety Level 1 (BSL 1) | Non disease causing microorganisms Standard precautions |
Bio Safety Level 2 (BSL 2) | Pathogens associated with human disease but not transmitted by inhalation Limited access to the Lab |
Bio Safety Level 3 (BSL 3) | Pathogens transmitted by inhalation -Safety cabinets -Lab is physically separated -Controlled air flow |
Bio Safety Level 4 | Very Dangerous infectious agents (Ebola Virus) -Stringent requirements (CDC) |
What a the 3 components that make up Taxonomy? | Classification Nomenclature Identification |
Who and when was the Open Neck Flask invented? | Mid 1800 Pasteur |
What makes the Gram Positive cell wall different from Gram Negative cell wall? | Thick layer of peptiodoglycan (as known as murein) |
What is found ONLY in Gram Negative cell wall between the inner and outer membrane? | Periplasmic Space |
Which bacteria is most commonly found in the nares of hospital personal? | Staphylococcus aureus |
Which organism resembles Staphylococcus? | Micrococcus |
Is Staphylococcus coagulase Positive or Negative? | Positive |
Does Staphylococcus result for Catalase testing Positive or Negative? | Positive |
What are 5 characteristics of Staphylococcus? | GPC, Catalase positive, Non-motile, Non-spore forming, Facultative anaerobe (can grow in air) |
Which form of Staphylococcus is coagulase positive? | Staphylococcus aureus |
Which type of hemolysis does S. aureus cause? | Beta hemolytic |
What does MRSA represent? | Methicillin-Resistant S. aureus |
Which medications are used to treat MRSA? | Vancomycin and Linezolid |