Micro 020 - General Microbiology » Winter 2021 » Chapter 2 Quiz

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Question #1
A pure culture contains ________.
A.   a variety of microbes from one source
B.   only one species of microorganism
C.   a variety of species from the same genus
D.   None of the choices are correct.
E.   only bacteria
Question #2
Which type of microscope is the most widely used and shows cells against a bright background?
A.   Fluorescence
B.   Electron
C.   Dark field
D.   Phase contrast
E.   Bright field
Question #3
The purpose of staining cells on a microscope slide is to ________.
A.   enlarge the cells
B.   see motility
C.   add contrast in order to see them better
D.   kill them
E.   secure them to the slide
Question #4
The type of microscope in which you would see brightly illuminated specimens against a black background is _____.
A.   phase contrast
B.   electron
C.   dark field
D.   fluorescence
E.   bright field
Question #5
The term that refers to the purposeful addition of microorganisms into a laboratory nutrient medium is _____.
A.   contamination
B.   inoculation
C.   immunization
D.   isolation
E.   infection
Question #6
All of the following are examples of different types of microbiological media except _____.
A.   enriched media
B.   agar
C.   petri dish
D.   selective media
E.   broth
Question #7
Which type of microscope does not use light in forming the specimen image?
A.   Electron
B.   Bright field
C.   Fluorescence
D.   Phase contrast
E.   Dark field
Question #8
Newly inoculated cultures must be _____ at a specific temperature to encourage growth.
A.   streaked
B.   poured
C.   incubated
D.   All of the choices are correct.
E.   contaminated
Question #9
Differential media results in which of the following growth characteristics?
A.   Different media color post incubation
B.   Different color colonies
C.   Different colony shapes
D.   Different colony shapes and different color colonies and different media color post incubation

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