Microbiology Lab Final Study guide
Which of the following may benefit from the identification of specific microorganisms?
- Environmental
... [Show More] bioremediation programs
- Criminal investigations
- Radiation treatment of produce and meats
- Treatment of infectious disease - - Environmental bioremediation programs
- Criminal investigations
- Treatment of infectious disease
_______________ identification methods examine the DNA sequence of an organism, whereas _______________ identification methods use antibody-antigen reactions to identify microorganisms. - Genotypic; immunologic
Which methods used to identify a microorganism causing an infection rely on the response of the host, rather than observation of the microorganism's properties? - Immunologic methods
Which of the following would be most valuable to confirm the identification of microorganisms isolated during a food poisoning outbreak?
- Growth on agar plates to identify colony morphology
- Gram stain to view cellular morphology
- Identification of microorganisms using microscopic, cultural, and physiological characteristics - Identification of microorganisms using microscopic, cultural, and physiological characteristics
What three main approaches can be used by microbiologists to identify microorganisms?
- Antibiotic
- Atmospheric
- Transgenic
- Genetic
- Immunologic
- Phenotypic - - Genetic
- Immunologic
- Phenotypic
Which of the following correctly describes E. coli?
- Can move using its flagella
- Possesses the enzyme for tryptophan breakdown
- Ferments only glucose
- Would be pink on MacConkey agar plate after incubation
- Does not produce acids during fermentation - - Can move using its flagella
- Possesses the enzyme for tryptophan breakdown
- Would be pink on MacConkey agar plate after incubation
What is the minimum number of media that you would need to inoculate to determine the red-circled items on this flowchart? - Three
E. coli would appear _________________ in color and _________________ - shaped under microscopic examination. - Pink; rod
Which of the following tests could have been used to determine that E. coli is a lactose-fermenter?
- Methyl red test
- KIA test
- MacConkey agar
- SIM medium
- Urease test - - KIA test
- MacConkey agar [Show Less]