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D311: Microbiology WGU OA well answered to pass
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D311: Microbiology WGU OA well answered to pass
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D311: Microbiology WGU OAWhat is the significance of microorganisms containing a thick coat of peptldogiywn within the cell wall? -
correct answer ✔✔Microorganisms containing a thick coat of peptidoglycan within the cell wall are typically classified as gram-positive bacteria.
Why are viruses considered acellular? - correct answer ✔✔They cannot reproduce without a host.
What is the defining characteristic of eukaryotes? - correct answer ✔✔They have a nucleus.
Which microorganism can cause vaginal yeast Infections and oral thrush? - correct answer ✔✔Fungi
Why can It be difficult to determine the etiologic agent of a disease? - correct answer ✔✔Some signs and symptoms can be caused by many different etiologic agents.
What kind of staining technique Is the acid-fast stain? - correct 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? - correct 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? - correct answer ✔✔Antifungals
Which structure promotes motility in Proteus. Shigelia. and Salmonella species. all of which can cause serious disease in humans? - correct answer ✔✔Presence of flagella
Which bacterial virulence factor allows a strain to resist phagocytosis, increasing the organism's virulence? - correct answer ✔✔Capsule production Why is treating Haemophilus influenzae difficult? - correct answer ✔✔The capsule is antiphagocytic.
How do pili aid pathogens in causing disease? - correct answer ✔✔They cause pathogens to adhere to host cells.
Which virulence factor allows pathogens to penetrate the dermis and invade the body? - correct 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? - correct answer ✔✔Gram staining
What does the presence of a clear area around a cell stained with India ink indicate about the cell? - correct answer ✔✔The cell has a capsule.
How do basic stains work? - correct 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? - correct answer ✔✔Endospore stain
Which aspect of a staining protocol enables dye to penetrate an endospore? - correct answer ✔✔Heat
Why are the relationships between pathogenic microbes and their hosts considered parasitic? - correct 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? - correct answer ✔✔Dracunculiasis has no animal reservoir.
Which type of organism would be most likely to grow on food stored in a refrigerator or freezer? - correct answer ✔✔A psychrophile would be most likely to grow on food stored in a refrigerator or freezer as these microorganisms thrive in cold temperatures.
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