D311 WGU Microbiology with Lab:
PA Questions & Answers | Latest
Already Graded A+
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.
© 2026 Copyright. All Rights Reserved. This document is
protected by copyright law, Copyrighted By Brittie Donald
PA Questions & Answers | Latest
Already Graded A+
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.
© 2026 Copyright. All Rights Reserved. This document is
protected by copyright law, Copyrighted By Brittie Donald
