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

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