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BIOL 2460- Nursing Microbiology Final Verified Exam
Review 2026/2027 || Most Recent Exam Actual
Complete Real Exam Questions And Correct Answers
(Verified Answers) Already Graded A+ | Guaranteed
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Pathogen A has an ID50 of 50 particles, pathogen B has
an ID50 of 1,000 particles, and pathogen C has an ID50 of
1 × 106 particles. Which pathogen is most virulent?
A. pathogen A
B. pathogen B
C. pathogen C - Answer-A. pathogen A
Which of the following choices lists the steps of
pathogenesis in the correct order?
A. invasion, infection, adhesion, exposure
B. adhesion, exposure, infection, invasion
C. exposure, adhesion, invasion, infection
D. disease, infection, exposure, invasion - Answer-C.
exposure, adhesion, invasion, infection
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Which of the following would be a virulence factor of a
pathogen?
A. a surface protein allowing the pathogen to bind to host
cells
B. a secondary host the pathogen can infect
C. a surface protein the host immune system recognizes
D. the ability to form a provirus - Answer-A. a surface
protein allowing the pathogen to bind to host cells
You have recently identified a new toxin. It is produced by
a gram-negative bacterium. It is composed mostly of
protein, has high toxicity, and is not heat stable. You also
discover that it targets liver cells. Based on these
characteristics, how would you classify this toxin?
A. superantigen
B. endotoxin
C. exotoxin
D. leukocidin - Answer-C. exotoxin
Which of the following applies to hyaluronidase?
A. It acts as a spreading factor.
B. It promotes blood clotting.
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C. It is an example of an adhesin.
D. It is produced by immune cells to target pathogens. -
Answer-A. It acts as a spreading factor.
Phospholipases are enzymes that do which of the
following?
A. degrade antibodies
B. promote pathogen spread through connective tissue.
C. degrade nucleic acid to promote spread of pathogen
D. degrade cell membranes to allow pathogens to escape
phagosomes - Answer-D. degrade cell membranes to
allow pathogens to escape phagosomes
Which of the following is a major virulence factor for the
fungal pathogen Cryptococcus?
A. hemolysin
B. capsule
C. collagenase
D. fimbriae - Answer-B. capsule
Which of the following pathogens undergoes antigenic
variation to avoid immune defenses?
BIOL 2460- Nursing Microbiology Final Verified Exam
Review 2026/2027 || Most Recent Exam Actual
Complete Real Exam Questions And Correct Answers
(Verified Answers) Already Graded A+ | Guaranteed
Success!! | Newest Exam!!!
Pathogen A has an ID50 of 50 particles, pathogen B has
an ID50 of 1,000 particles, and pathogen C has an ID50 of
1 × 106 particles. Which pathogen is most virulent?
A. pathogen A
B. pathogen B
C. pathogen C - Answer-A. pathogen A
Which of the following choices lists the steps of
pathogenesis in the correct order?
A. invasion, infection, adhesion, exposure
B. adhesion, exposure, infection, invasion
C. exposure, adhesion, invasion, infection
D. disease, infection, exposure, invasion - Answer-C.
exposure, adhesion, invasion, infection
,2|Page
Which of the following would be a virulence factor of a
pathogen?
A. a surface protein allowing the pathogen to bind to host
cells
B. a secondary host the pathogen can infect
C. a surface protein the host immune system recognizes
D. the ability to form a provirus - Answer-A. a surface
protein allowing the pathogen to bind to host cells
You have recently identified a new toxin. It is produced by
a gram-negative bacterium. It is composed mostly of
protein, has high toxicity, and is not heat stable. You also
discover that it targets liver cells. Based on these
characteristics, how would you classify this toxin?
A. superantigen
B. endotoxin
C. exotoxin
D. leukocidin - Answer-C. exotoxin
Which of the following applies to hyaluronidase?
A. It acts as a spreading factor.
B. It promotes blood clotting.
, 3|Page
C. It is an example of an adhesin.
D. It is produced by immune cells to target pathogens. -
Answer-A. It acts as a spreading factor.
Phospholipases are enzymes that do which of the
following?
A. degrade antibodies
B. promote pathogen spread through connective tissue.
C. degrade nucleic acid to promote spread of pathogen
D. degrade cell membranes to allow pathogens to escape
phagosomes - Answer-D. degrade cell membranes to
allow pathogens to escape phagosomes
Which of the following is a major virulence factor for the
fungal pathogen Cryptococcus?
A. hemolysin
B. capsule
C. collagenase
D. fimbriae - Answer-B. capsule
Which of the following pathogens undergoes antigenic
variation to avoid immune defenses?
