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

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