Exam (elaborations)
WGU D311: Microbiology With Lab: PA – Questions And Correct Answers
- Course
- Institution
WGU D311: Microbiology With Lab: PA – Questions And Correct Answers
[Show more]
Content preview
WGU D311: Microbiology With Lab: PA – Questions AndCorrect Answers
Which class of cells most often contain extrachromosomal DNA found in
plasmids? Right 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? Right Ans -
Phospholipids help maintain hydrophobic and hydrophilic environments.
Which microorganisms produce dermatophytes that can cause skin infections,
such as athlete's foot and ringworm? Right Ans - Fungi
Which microorganisms can produce human pathogens that spread via
microsporidia? Right Ans - Fungi
Why are archaea considered prokaryotic organisms? Right Ans - Their cells
do not contain a nucleus.
Why is MRSA more pathogenic than other strains of Staphylococcus aureus?
Right 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? Right Ans - Iatrogenic
Which viral virulence factor requires adjustments to the influenza vaccine
annually? Right 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? Right Ans - Coagulase and kinase
How does confection of a single cell by multiple strains of a virus increase it's
pathogenicity? Right 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.
Which staining technique can be used to identify these microorganisms?
Right 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.
What will the student see upon microscopic examination of the slide? Right
Ans - 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?
Right Ans - Wet mount stain
A technician has just performed a Gram stain but forgot to add the safranin.
What is the likely result of this when viewed microscopically? Right Ans -
Gram-negative organisms can not be seen under the microscope.
Which characteristic of mycobacterium makes a Gram stain unsuitable?
Right Ans - The cell wall has a waxy lipid.
Which feature of infection indicates the presence of a primary pathogen
rather than an opportunistic pathogen? Right Ans - Patients with healthy
immune systems.
After oral antibiotic therapy, a patient is diagnosed with vaginitis.
What type of microbe could be causing this opportunistic infection? Right
Ans - Fungus
What type of microbe is used to deliver gene therapies to human cells?
Right Ans - Virus
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller LeCrae. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $10.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
77254 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now