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

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