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

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

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