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

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