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WGU D311 Microbiology Exam – Questions With Proper Solutions (Rated A+)
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WGU D311 Microbiology Exam – Questions With Proper Solutions (Rated A+)
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WGU D311 Microbiology Exam – Questions WithProper Solutions (Rated A+)
Which vaccine type has the advantages of producing long-lasting cellular and
humoral immunity and allowing transmission to contacts? Right Ans - live
attenuated
Broad-spectrum antibiotics disrupt the microbiome and provide an
opportunity for pathogens such as Clostridium difficile to grow and cause
infection. How can the microbiome be quickly reestablished to prevent a
Clostridium difficile infection? Right Ans - fecal transplant
When would it be best to treat a patient with a narrow-spectrum
antimicrobial rather than a broad-spectrum antimicrobial? Right Ans -
when the infectious agent has been identified as a gram-negative bacterium
Which outcome is a direct result of the increased "leakiness" of capillaries
during inflammation? Right Ans - edema
Which describes a mutualistic relationship? Right Ans - Ruminococcus
species using nutrients from a cow's diet to digest plant cellulose in the rumen
Which viral virulence factor requires adjustments to the influenza vaccine
annually? Right Ans - antigenic variation
A bacterial pathogen is found growing in the bloodstream of a patient. Which
diagnosis is correct for this finding? Right Ans - septicemia
Why is desiccation or dehydration an effective method of microbial control?
Right Ans - Water concentration decreases below what is required for
microbial survival
Which virulence factor produced by Pesudomonas aeruginosa gives off a
fruity odor? Right Ans - pyocyanin
A dental hygienist nicked the gum of the patient during a routine cleaning. A
mild infection of the gum was followed 10 days alter with acute bacterial
, endocarditis. Which type of infection caused the endocarditis? Right Ans - a
focal infection
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
Why are diseases like Legionnaires' disease considered noncommunicable?
Right Ans - Once a person contracts this disease, they can not pass it to
another person
Why is there a resurgence in whooping cough and measles in the United
States? Right Ans - more opposition to childhood vaccination
What microbial process is used by bacteria and fungi to produce many
common food products, such as soy sauce, bread, and yogurt? Right Ans -
fermentation
After oral antibiotic therapy, a patient is diagnosed with vaginitis. What type
of microbe could be causing this opportunistic infection? Right Ans -
fungus
Which beneficial role do viruses have in the environment? Right Ans -
integrating into plant genomes to increase drought tolerance
A pregnant person has received all of her childhood immunizations, including
for pertussis, but has chosen not to receive boosters while pregnant or to
immunize her child once it is born. What will happen to her child if exposed to
pertussis at five years old? Right Ans - The child's immune system will
need to fight the infection
Which feature of infection indicates the presence of a primary pathogen
rather than an opportunistic pathogen? Right Ans - patients with a healthy
immune system
What is the most common portal of exit for vector-transmitted diseases such
as West Nile virus? Right Ans - blood
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