Micro 020 - General Microbiology » Winter 2021 » Lab Quiz 2 Gram Stain
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Question #1
What color is a Gram +?
A.
Pink
B.
Purple
C.
Blue
D.
Red
Question #2
What color is a Gram -?
A.
Red
B.
Blue
C.
Green
D.
Purple
Question #3
What dyes are used in a Gram stain?
A.
Crystal violet, methylene blue
B.
Crystal Violet, Safranin
C.
Acetone/alcohol
Question #4
What is the decolorizer/ destain for the Gram stain?
A.
acid/alcohol
B.
acetone/alcohol
C.
acid/ acetone
D.
acetone/phenol
Question #5
Which ingredient sets the stain?
A.
Crystal violet
B.
Acetone/alcohol
C.
Iodine
D.
Safranin
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