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WGU OA D311: Microbiology 2026/2027 ACTUAL
COMPREHENSIVE REAL VERIFIED EXAM QUESTIONS
WITH DETAILED VERIFIED AND 100% CORRECT
ANSWERS||NEWEST EXAM!!
Why are archaea considered prokaryotic organisms? -
Answer-Their cells do not contain a nucleus.
Why is MRSA more pathogenic than other strains of
Staphylococcus aureus? - Answer-MRSA has increased
antibiotic resistance.
A patient recently had an outpatient surgical procedure.
After a few days at home, they noticed swelling and
redness at their incision site. How would this infection be
classified? - Answer-Iatrogenic
Which viral virulence factor requires adjustments to the
influenza vaccine annually? - Answer-Antigenic variation
Which pair of enzymes are produced by some bacteria
that causes the clotting of blood to protect the bacteria in
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the bloodstream, then a digestion of the clots to allow the
bacteria to spread? - Answer-Coagulase and kinase
How does coinfection of a single cell by multiple strains of
a virus increase it's pathogenicity? - Answer-Coinfection
provides the opportunity for an antigenic shift.
Canned food is heated and sealed in sterile containers to
provide a longer shelf life and prevent spoilage. Improper
canning results in the growth of microorganisms, which
may result in food containers that swell and explode.
Which staining technique can be used to identify these
microorganisms? - Answer-Endospore staining
A student in a lab has just completed an endospore stain
of Bacillus anthracis and realized that heat was not
applied during the staining technique.
Which class of cells most often contain extrachromosomal
DNA found in plasmids? - Answer-Prokaryotic
What is the significance of the molecule that makes up the
bilayer formed in the plasma membrane of most bacterial
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and eukaryotic cells? - Answer-Phospholipids help
maintain hydrophobic and hydrophilic environments.
Which microorganisms produce dermatophytes that can
cause skin infections, such as athlete's foot and
ringworm? - Answer-Fungi
Which microorganisms can produce human pathogens
that spread via microsporidia? - Answer-Fungi
What will the student see upon microscopic examination of
the slide? - Answer-Pink vegetative cells with clear round
areas.
A physician is given a vaginal swab in order to test for
post-antibiotic vaginal infection.
Which microscopic technique would identify opportunistic
fungal pathogen? - Answer-Wet mount stain
WGU OA D311: Microbiology 2026/2027 ACTUAL
COMPREHENSIVE REAL VERIFIED EXAM QUESTIONS
WITH DETAILED VERIFIED AND 100% CORRECT
ANSWERS||NEWEST EXAM!!
Why are archaea considered prokaryotic organisms? -
Answer-Their cells do not contain a nucleus.
Why is MRSA more pathogenic than other strains of
Staphylococcus aureus? - Answer-MRSA has increased
antibiotic resistance.
A patient recently had an outpatient surgical procedure.
After a few days at home, they noticed swelling and
redness at their incision site. How would this infection be
classified? - Answer-Iatrogenic
Which viral virulence factor requires adjustments to the
influenza vaccine annually? - Answer-Antigenic variation
Which pair of enzymes are produced by some bacteria
that causes the clotting of blood to protect the bacteria in
,2|Page
the bloodstream, then a digestion of the clots to allow the
bacteria to spread? - Answer-Coagulase and kinase
How does coinfection of a single cell by multiple strains of
a virus increase it's pathogenicity? - Answer-Coinfection
provides the opportunity for an antigenic shift.
Canned food is heated and sealed in sterile containers to
provide a longer shelf life and prevent spoilage. Improper
canning results in the growth of microorganisms, which
may result in food containers that swell and explode.
Which staining technique can be used to identify these
microorganisms? - Answer-Endospore staining
A student in a lab has just completed an endospore stain
of Bacillus anthracis and realized that heat was not
applied during the staining technique.
Which class of cells most often contain extrachromosomal
DNA found in plasmids? - Answer-Prokaryotic
What is the significance of the molecule that makes up the
bilayer formed in the plasma membrane of most bacterial
, 3|Page
and eukaryotic cells? - Answer-Phospholipids help
maintain hydrophobic and hydrophilic environments.
Which microorganisms produce dermatophytes that can
cause skin infections, such as athlete's foot and
ringworm? - Answer-Fungi
Which microorganisms can produce human pathogens
that spread via microsporidia? - Answer-Fungi
What will the student see upon microscopic examination of
the slide? - Answer-Pink vegetative cells with clear round
areas.
A physician is given a vaginal swab in order to test for
post-antibiotic vaginal infection.
Which microscopic technique would identify opportunistic
fungal pathogen? - Answer-Wet mount stain
