Microbiology 020 - General Microbiology » Fall 2020 » Lab Quiz 11

Need help with your exam preparation?

Existing Quiz Clients Login here
Question #1
If the unknown microorganism cannot be cultured, the ______ approach can help us identify the unknown.
A.   phenotypic
B.   genetic
C.   immunological
D.   all of these are correct
Question #2
In addition to genetic and immunological approaches, identification of microbial unknowns can be done using phenotypic characteristics.
A.   TRUE
B.   FALSE
Question #3
Macroscopic characteristics that can be helpful in bacterial identification include…
A.   Gram stain reaction
B.   colony form
C.   two of these are correct
D.   colony color
Question #4
After preparing a pure culture of the unknown bacterium using an isolation method, the best starting point for the identification process is usually…
A.   determination of specialized structures, such as endospores
B.   determination of colony color and form
C.   determination of lactose fermentation
D.   determination of cell shape and Gram reaction
Question #5
Some types of media combine multiple tests to inform us of different types of information about an organism. How is this helpful?
A.   It makes the biochemical testing process more efficient
B.   All of these are correct
C.   It allows us to determine the Gram reaction without having to do a stain
D.   It gives us information about oxygen requirements so we can properly incubate the organism
Question #6
The small glass Durham tube that is inverted in the phenol red broth is used to…
A.   detect gas production
B.   detect acid production from fermentation
C.   detect hydrogen sulfide production
D.   two of these are correct
Question #7
The quickest method to isolate bacteria is/are…
A.   all of these are quick methods
B.   loop dilution pour plating method
C.   the streak plate method
D.   serial dilution spread plating
Question #8
The SIM medium is used to test for…
A.   indole production
B.   motility
C.   all of these are correct
D.   hydrogen sulfide production

Need help with your exam preparation?

Existing Quiz Clients Login here