D311 Microbiology Exam Questions with Verified Answers (Correct
Update)
Question 1: Which vaccine type has the advantages of producing
long-lasting cellular and humoral immunity and allowing transmission to contacts?
Answer: live attenuated
Question 2: 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
Question 3: When would it be best to treat a patient with a narrow-spectrum antimicrobial
rather than a broad-spec- h
trum antimicrobial?
Answer: when the infectious agent
as been identified as a
gram-negative bacterium
Question 4: Which outcome is a direct result of the increased "leakiness" of capillaries during
inflammation?
Answer: edema
Question 5: Which describes a mutualistic relationship?
Answer: Ruminococcus species using nutrients from a cow's
diet to digest plant cellulose in the rumen
Question 6: Which viral virulence factor requires adjustments to
the influenza vaccine annually?
Answer: antigenic variation
Question 7: A bacterial pathogen is found growing in the bloodstream of a patient. Which
diagnosis is correct for this
finding?
Answer: septicemia
Page 1
, Question 8: Why is desiccation or dehydration an effective method W
of microbial control?
Answer: Water concentration decreases below what is required for microbial survival
Question 9: Which virulence factor produced by Pesudomonas
aeruginosa gives off a fruity odor?
Answer: pyocyanin
Question 10: 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?
Answer: a focal infection
Question 11: 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
Question 12: Why are diseases like Legionnaires' disease considered noncommunicable?
Answer: Once a person contracts
this disease, they can not
pass it to another person
Question 13: Why is there a resurgence in whooping cough and
measles in the United States?
Answer: more opposition to childhood vaccination
Question 14: What microbial process is used by bacteria and fungi
to produce many common food products, such as soy
sauce, bread, and yogurt?
Answer: fermentation
Page 2
Update)
Question 1: Which vaccine type has the advantages of producing
long-lasting cellular and humoral immunity and allowing transmission to contacts?
Answer: live attenuated
Question 2: 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
Question 3: When would it be best to treat a patient with a narrow-spectrum antimicrobial
rather than a broad-spec- h
trum antimicrobial?
Answer: when the infectious agent
as been identified as a
gram-negative bacterium
Question 4: Which outcome is a direct result of the increased "leakiness" of capillaries during
inflammation?
Answer: edema
Question 5: Which describes a mutualistic relationship?
Answer: Ruminococcus species using nutrients from a cow's
diet to digest plant cellulose in the rumen
Question 6: Which viral virulence factor requires adjustments to
the influenza vaccine annually?
Answer: antigenic variation
Question 7: A bacterial pathogen is found growing in the bloodstream of a patient. Which
diagnosis is correct for this
finding?
Answer: septicemia
Page 1
, Question 8: Why is desiccation or dehydration an effective method W
of microbial control?
Answer: Water concentration decreases below what is required for microbial survival
Question 9: Which virulence factor produced by Pesudomonas
aeruginosa gives off a fruity odor?
Answer: pyocyanin
Question 10: 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?
Answer: a focal infection
Question 11: 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
Question 12: Why are diseases like Legionnaires' disease considered noncommunicable?
Answer: Once a person contracts
this disease, they can not
pass it to another person
Question 13: Why is there a resurgence in whooping cough and
measles in the United States?
Answer: more opposition to childhood vaccination
Question 14: What microbial process is used by bacteria and fungi
to produce many common food products, such as soy
sauce, bread, and yogurt?
Answer: fermentation
Page 2
