K
C
D311: LAB MICROBIOLOGY
LO
WGU PA EXAM QUESTIONS
YC
COMPLETE WITH
DETAILED VERIFIED
D
ANSWERS 100% CORRECT
U
/A+GRADED
ST
, 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
K
Which microorganisms can produce human pathogens that spread via microsporidia? - ANS
Fungi
C
Why are archaea considered prokaryotic organisms? - ANS Their cells do not contain a
nucleus.
LO
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
YC
Iatrogenic
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
D
protect the bacteria in the bloodstream, then a digestion of the clots to allow the bacteria to
spread? - ANS Coagulase and kinase
U
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.
ST
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? - ANS 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.
C
D311: LAB MICROBIOLOGY
LO
WGU PA EXAM QUESTIONS
YC
COMPLETE WITH
DETAILED VERIFIED
D
ANSWERS 100% CORRECT
U
/A+GRADED
ST
, 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
K
Which microorganisms can produce human pathogens that spread via microsporidia? - ANS
Fungi
C
Why are archaea considered prokaryotic organisms? - ANS Their cells do not contain a
nucleus.
LO
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
YC
Iatrogenic
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
D
protect the bacteria in the bloodstream, then a digestion of the clots to allow the bacteria to
spread? - ANS Coagulase and kinase
U
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.
ST
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? - ANS 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.
