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.   Phase contrast
B.   Bright field
C.   Fluorescence
D.   Dark field
E.   Electron
Question #2
A pure culture contains ________.
A.   only bacteria
B.   only one species of microorganism
C.   a variety of species from the same genus
D.   a variety of microbes from one source
E.   None of the choices are correct.
Question #3
What type of isolation technique is most effective for the majority of applications?
A.   Culture plate
B.   Streak plate
C.   Spread plate
D.   Loop dilution
E.   Pour plate
Question #4
What do the Gram stain, acid-fast stain, and endospore stain have in common?
A.   They are simple stains.
B.   They use a negative stain technique.
C.   They use heat to force the dye into cell structures.
D.   They are used on a wet mount of the specimen.
E.   The outcome is based on cell differences.
Question #5
All of the following are examples of different types of microbiological media except _____.
A.   agar
B.   selective media
C.   enriched media
D.   petri dish
E.   broth
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.   flagellar
B.   differential
C.   acid-fast or Ziehl-Neelson
D.   capsule
E.   simple
Question #8
Differential media results in which of the following growth characteristics?
A.   Different colony shapes
B.   Different color colonies
C.   Different colony shapes, Different media color post incubation, and Different color colonies
D.   Different media color post incubation
Question #9
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

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