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