2024 /2025 | © copyright | This work may not be copied for profit gain | Excel!
Lab Final Study guide Questions & 100%
Correct Answers- Latest Test | Graded A+ |
Passed
Which of the following may benefit from the identification of specific microorganisms?
- Environmental 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?
1|Page | Grade A+| 2024/2025
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✓ -:- 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
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✓ -:- - 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
3|Page | Grade A+| 2024/2025
, 2024 /2025 | © copyright | This work may not be copied for profit gain | Excel!
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
The Gram stain is an example of a test that can be used to determine the
________________ characteristics of a bacterium.
✓ -:- Morphological
4|Page | Grade A+| 2024/2025
Lab Final Study guide Questions & 100%
Correct Answers- Latest Test | Graded A+ |
Passed
Which of the following may benefit from the identification of specific microorganisms?
- Environmental 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?
1|Page | Grade A+| 2024/2025
,2024 /2025 | © copyright | This work may not be copied for profit gain | Excel!
✓ -:- 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
2|Page | Grade A+| 2024/2025
,2024 /2025 | © copyright | This work may not be copied for profit gain | Excel!
✓ -:- - 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
3|Page | Grade A+| 2024/2025
, 2024 /2025 | © copyright | This work may not be copied for profit gain | Excel!
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
The Gram stain is an example of a test that can be used to determine the
________________ characteristics of a bacterium.
✓ -:- Morphological
4|Page | Grade A+| 2024/2025
