Microbiology 020 - General Microbiology » Spring 2021 » Chapter 2 Quiz

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Question #1
Which type of microscope is the most widely used and shows cells against a bright background?
A.   Fluorescence
B.   Dark field
C.   Electron
D.   Bright field
E.   Phase contrast
Question #2
A pure culture contains ________.
A.   only bacteria
B.   a variety of microbes from one source
C.   only one species of microorganism
D.   None of the choices are correct.
E.   a variety of species from the same genus
Question #3
What type of isolation technique is most effective for the majority of applications?
A.   Spread plate
B.   Streak plate
C.   Culture plate
D.   Pour plate
E.   Loop dilution
Question #4
What do the Gram stain, acid-fast stain, and endospore stain have in common?
A.   They use a negative stain technique.
B.   The outcome is based on cell differences.
C.   They use heat to force the dye into cell structures.
D.   They are used on a wet mount of the specimen.
E.   They are simple stains.
Question #5
All of the following are examples of different types of microbiological media except _____.
A.   agar
B.   selective media
C.   broth
D.   enriched media
E.   petri dish
Question #6
The Five I's of studying microorganisms include all of the following except _____.
A.   incubation
B.   identification
C.   inoculation
D.   isolation
E.   infection
Question #7
The Gram staining procedure is best described as a(n) _______ staining technique.
A.   capsule
B.   flagellar
C.   simple
D.   acid-fast or Ziehl-Neelson
E.   differential
Question #8
Differential media results in which of the following growth characteristics?
A.   Different media color post incubation
B.   Different colony shapes, Different media color post incubation, and Different color colonies
C.   Different color colonies
D.   Different colony shapes
Question #9
The purpose of staining cells on a microscope slide is to ________.
A.   add contrast in order to see them better
B.   see motility
C.   secure them to the slide
D.   enlarge the cells
E.   kill them

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