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

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