1|Page
WGU D311 OA Final Exam / WGU D311 Microbiology
Objective Assessment Final Exam Newest 2025/2026
Actual Exam Complete Questions And Correct
Detailed Answers (Verified Answers) |Already Graded
A+||Latest Version!!!
Which vaccine type has the advantages of producing long-
lasting cellular and humoral immunity and allowing
transmission to contacts? - Answer-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? - Answer-fecal transplant
When would it be best to treat a patient with a narrow-
spectrum antimicrobial rather than a broad-spectrum
antimicrobial? - Answer-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? - Answer-
edema
,2|Page
Which describes a mutualistic relationship? - Answer-
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? - Answer-antigenic variation
A bacterial pathogen is found growing in the bloodstream
of a patient. Which diagnosis is correct for this finding? -
Answer-septicemia
Why is desiccation or dehydration an effective method of
microbial control? - Answer-Water concentration
decreases below what is required for microbial survival
Which virulence factor produced by Pesudomonas
aeruginosa gives off a fruity odor? - Answer-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
, 3|Page
of infection caused the endocarditis? - Answer-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? -
Answer-pink vegetative cells with clear round areas
Why are diseases like Legionnaires' disease considered
noncommunicable? - Answer-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? - Answer-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? - Answer-fermentation
WGU D311 OA Final Exam / WGU D311 Microbiology
Objective Assessment Final Exam Newest 2025/2026
Actual Exam Complete Questions And Correct
Detailed Answers (Verified Answers) |Already Graded
A+||Latest Version!!!
Which vaccine type has the advantages of producing long-
lasting cellular and humoral immunity and allowing
transmission to contacts? - Answer-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? - Answer-fecal transplant
When would it be best to treat a patient with a narrow-
spectrum antimicrobial rather than a broad-spectrum
antimicrobial? - Answer-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? - Answer-
edema
,2|Page
Which describes a mutualistic relationship? - Answer-
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? - Answer-antigenic variation
A bacterial pathogen is found growing in the bloodstream
of a patient. Which diagnosis is correct for this finding? -
Answer-septicemia
Why is desiccation or dehydration an effective method of
microbial control? - Answer-Water concentration
decreases below what is required for microbial survival
Which virulence factor produced by Pesudomonas
aeruginosa gives off a fruity odor? - Answer-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
, 3|Page
of infection caused the endocarditis? - Answer-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? -
Answer-pink vegetative cells with clear round areas
Why are diseases like Legionnaires' disease considered
noncommunicable? - Answer-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? - Answer-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? - Answer-fermentation
