Microbiology 3 Question Preview (ID: 1993)
Microbiology, Hemocult.
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What is the gram reaction of the organism most common to cause UTI's
a) gram negative cocci
b) gram positive cocci
c) gram negative bacilli
d) gram positive bacilli
Which of the following microorganisms is the smallest?
a) viruses
b) bacteria
c) fungus
d) parasites
What color will the gram reaction be if the acetone or alcohol is left on the bacterial specimen to long?
a) purple
b) pink
c) colorless
d) grey
What color is the hemolysis around a Group B Streptococcus?
a) clear
b) grey
c) yellow
d) green
No microbes growing around the A disk indicates _______
a) Streptococcus pyogenes (Group A strep)
b) Streptococcus species (Group B strep)
c) Entamoeba hystolytica
d) Escherichia coli
If the bacteria cell wall retains the safranin stain, the result will be a _______ color.
a) blue
b) pink
c) purple
d) orange
The second step of the gram stain and considered to be the mordant is the ______
a) crystal violet
b) decolorizer
c) iodine
d) safranin red
A bacillis microorganism has a _______ shape
a) round
b) star
c) rod
d) spiral
Microbiologist will use the _____ test to tell the difference between Staph aureus and Staph epidermidis
a) catalase
b) MIC
c) Kirby Bauer
d) coagulase
The food substance used to grow bacteria in the clinical laboratory is _____
a) fertilizer
b) nutrient agar
c) glucose
d) acetone
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