Exam (elaborations)
D311: Microbiology WGU OA 2024 Questions With Correct Answers.
- Course
- Institution
D311: Microbiology WGU OA 2024 Questions With Correct Answers.
[Show more]
1 review
By: nelsonbethanne • 3 weeks ago
Content preview
D311: Microbiology WGU OA 2024 Questions With Correct Answers.What is the significance of microorganisms containing a thick coat of peptldogiywn within the cell wall? Answer- Microorganisms containing a thick coat of peptidoglycan within the cell wall are typically classified as gram-positive bacteria.
Why are viruses considered aceilular? Answer- They cannot reproduce without a host.
What is the defining characteristic of eukaryotes? Answer- They have a nucleus.
Which microorganism can cause vaginal yeast Infections and oral thrush? Answer- Fungi
Why can It be difficult to determine the etiologic agent of a disease? Answer- Some signs and symptoms can be caused by many different etiologic agents.
What kind of staining technique Is the acid-fast stain? Answer- A doctor prescribed antibiotics for a patient complaining of runny nose. fever. and aches and pains. Which type of infection did the doctor suspect? Answer- The doctor likely suspected a viral infection because antibiotics are not effective against viral infections.
A healthcare professional is treating a patient who developed a yeast infection after taking antibiotics. What type of medication should be prescribed to this patient? Answer- Antifungals
Which structure promotes motility in Proteus. Shigelia. and Salmonella species. all of
which can cause serious disease in humans? Answer- Presence of flagella
Which bacterial virulence factor allows a strain to resist phagocytosis, increasing the organism's virulence? Answer- Capsule production
Why is treating Haemophilus influenzae difficult? Answer- The capsule is antiphagocytic.
How do pili aid pathogens in causing disease? Answer- They cause pathogens to adhere to host cells. Which virulence factor allows pathogens to penetrate the dermis and invade the body? Answer- Bacterial enzymes
A bacterium from a deep-sea hydrothermal vent has been cultured. Which staining technique should be used to begin the process of species identification? Answer- Gram staining
What does the presence of a clear area around a cell stained with India ink indicate about the cell? Answer- The cell has a capsule.
How do basic stains work? Answer- The positively charged stain is attracted to the negatively charged portion of the cell.
Which staining technique is used to distinguish bacteria based on their ability to produce structures that can survive extreme heat stress? Answer- Endospore stain
Which aspect of a staining protocol enables dye to penetrate an endospore? Answer- Heat
Why are the relationships between pathogenic microbes and their hosts considered parasitic? Answer- The microbe benefits from the interaction while the host is harmed.
Which characteristic of dracunculiasis has been pivotal to the success of its eradication campaign? Answer- Dracunculiasis has no animal reservoir.
Which type of organism would be most likely to grow on food stored in a refrigerator or freezer? Answer- A psychrophile would be most likely to grow on food stored in a refrigerator or freezer as these microorganisms thrive in cold temperatures.
Staphylococcus epidermldls is a member of the human resident microbiota and considered part of the human innate immune system. S. epldermidis uses our dead skin cells as a source of nutrients. What type of relationship between S. epidermidis and humans is described above? Answer- The type of relationship between Staphylococcus epidermidis and humans described above is "Commensalism," where one organism (S. epidermidis) benefits (uses dead skin cells) without harming
the other organism (humans).
Commensalism
Why is the production of lactic acid by the resident microbe Lactobacillus Important to human health? Answer- Lactic acid is important to human health because it inhibits the growth of pathogenic yeasts.
Which type of infections are prevented by proper sterilization of hospital equipment and healthcare worker handwashing? Answer- Nosocomial infections are prevented by proper sterilization of hospital equipment and healthcare worker handwashing.
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 EvaTee. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $11.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
73314 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now