D311: WGU MICROBIOLOGY WITH LAB: PA |
QUESTIONS AND ANSWERS | 2025/2026 NEW UPDATE
| 100% CORRECT!!
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 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
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 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.
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.
QUESTIONS AND ANSWERS | 2025/2026 NEW UPDATE
| 100% CORRECT!!
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 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
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 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.
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.
