Microbiology 3 Question Preview (ID: 1993)


Microbiology, Hemocult. TEACHERS: click here for quick copy question ID numbers.

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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