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D311_ Microbiology WGU OA Questions and Answers 100- Correct_.pdf
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8/23/24, 6:51 PMD311: Microbiology WGU OA
Jeremiah
Practice questions for this set
Terms in this set (53)
What is the significance of microorganisms Microorganisms containing a thick coat of peptidoglycan within the cell wall are
containing a thick coat of peptldogiywn typically classified as gram-positive bacteria.
within the cell wall?
Why are viruses considered aceilular? They cannot reproduce without a host.
What is the defining characteristic of They have a nucleus.
D311: Microbiology WGU OA
eukaryotes?
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, 8/23/24, 6:51 PM
Which microorganism can cause vaginal Fungi
yeast Infections and oral thrush?
Why can It be difficult to determine the Some signs and symptoms can be caused by many different etiologic agents.
etiologic agent of a disease?
What kind of staining technique Is the acid-
fast stain?
A doctor prescribed antibiotics for a patient The doctor likely suspected a viral infection because antibiotics are not effective
complaining of runny nose. fever. and aches against viral infections.
and pains. Which type of infection did the
doctor suspect?
A healthcare professional is treating a patient Antifungals
who developed a yeast infection after taking
antibiotics. What type of medication should
be prescribed to this patient?
Which structure promotes motility in Proteus. Presence of flagella
Shigelia. and Salmonella species. all of which
can cause serious disease in humans?
Which bacterial virulence factor allows a Capsule production
strain to resist phagocytosis, increasing the
organism's virulence?
Why is treating Haemophilus influenzae The capsule is antiphagocytic.
difficult?
How do pili aid pathogens in causing They cause pathogens to adhere to host cells.
disease?
Which virulence factor allows pathogens to Bacterial enzymes
penetrate the dermis and invade the body?
A bacterium from a deep-sea hydrothermal Gram staining
vent has been cultured. Which staining
technique should be used to begin the
process of species identification?
What does the presence of a clear area The cell has a capsule.
around a cell stained with India ink indicate
about the cell?
How do basic stains work? The positively charged stain is attracted to the negatively charged portion of the cell.
Which staining technique is used to Endospore stain
distinguish bacteria based on their ability to
produce structures that can survive extreme
heat stress?
Which aspect of a staining protocol enables Heat
dye to penetrate an endospore?
Why are the relationships between The microbe benefits from the interaction while the host is harmed.
pathogenic microbes and their hosts
considered parasitic?
Which characteristic of dracunculiasis has Dracunculiasis has no animal reservoir.
been pivotal to the success of its eradication
campaign?
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