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D311: WGU Microbiology with Lab: PA
Questions and Correct Answers/ Latest
Update / Already Graded
Which class of cells most often contain extrachromosomal DNA
found in plasmids?
Ans: Prokaryotic
What is the significance of the molecule that makes up the bilayer
formed in the plasma membrane of most bacterial and eukaryotic
cells?
Ans: Phospholipids help maintain hydrophobic and hydrophilic
environments.
Which microorganisms produce dermatophytes that can cause skin
infections, such as athlete's foot and ringworm?
Ans: Fungi
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Which microorganisms can produce human pathogens that spread
via microsporidia?
Ans: Fungi
Why are archaea considered prokaryotic organisms?
Ans: Their cells do not contain a nucleus.
Why is MRSA more pathogenic than other strains of Staphylococcus
aureus?
Ans: 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?
Ans: Iatrogenic
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Which viral virulence factor requires adjustments to the influenza
vaccine annually?
Ans: Antigenic variation
Which pair of enzymes are produced by some bacteria that causes
the clotting of blood to protect the bacteria in the bloodstream,
then a digestion of the clots to allow the bacteria to spread?
Ans: Coagulase and kinase
How does coinfection of a single cell by multiple strains of a virus
increase it's pathogenicity?
Ans: 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.
D311: WGU Microbiology with Lab: PA
Questions and Correct Answers/ Latest
Update / Already Graded
Which class of cells most often contain extrachromosomal DNA
found in plasmids?
Ans: Prokaryotic
What is the significance of the molecule that makes up the bilayer
formed in the plasma membrane of most bacterial and eukaryotic
cells?
Ans: Phospholipids help maintain hydrophobic and hydrophilic
environments.
Which microorganisms produce dermatophytes that can cause skin
infections, such as athlete's foot and ringworm?
Ans: Fungi
,2 | Page
Which microorganisms can produce human pathogens that spread
via microsporidia?
Ans: Fungi
Why are archaea considered prokaryotic organisms?
Ans: Their cells do not contain a nucleus.
Why is MRSA more pathogenic than other strains of Staphylococcus
aureus?
Ans: 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?
Ans: Iatrogenic
, 3 | Page
Which viral virulence factor requires adjustments to the influenza
vaccine annually?
Ans: Antigenic variation
Which pair of enzymes are produced by some bacteria that causes
the clotting of blood to protect the bacteria in the bloodstream,
then a digestion of the clots to allow the bacteria to spread?
Ans: Coagulase and kinase
How does coinfection of a single cell by multiple strains of a virus
increase it's pathogenicity?
Ans: 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.
