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MICROBIOLOGY EXAM 3 TEST FINAL EXAM AND
PRACTICE EXAM 2026/2027 BANK 2 VERSIONS QUESTIONS
WITH DETAILED VERIFIED ANSWERS / EXAM QUESTIONS
WILL COME FROM HERE (100% CORRECT ANSWERS/ A+
GRADED
Name three mechanical factors that serve as primary barriers to
infectious agents. - ANSWERS--Secretions; Flushing of Urine, Tears, &
Sweat; Ciliary Escalator; Peristalsis; Blinking of Eyelids
Artificially-acquired, active immunity is a result of ..........? - ANSWERS--
Immunization (Vaccination)
The principal government agency responsible for tracking infectious
diseases in the United States is: - ANSWERS--Centers for Disease
Control and Prevention
Semmelweis advocated what as a method of preventing infection
during childbirth?
surgical gloves
handwashing
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aseptic technique
disinfectant
antiseptic - ANSWERS--handwashing
Naturally-acquired, passive immunity is a result of ..........? - ANSWERS--
Mother's immunity: Trans-placental Antibody = Immunoglobulin G
(IgG); Breast Feeding of colostrum/breast milk containing
Immunoglobulins A, G, M (secretory IgA, IgG, IgM)
The presence of an axial filament would be associated with which of
the following diseases?
syphilis
gonorrhea
Lyme disease
Both A and B are correct.
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Both A and C are correct. - ANSWERS--Both A and C are correct.
The number of new cases of a disease in a population over a specific
period of time compared with the population at risk is the:
prevalence rate
morbidity rate
mortality rate
incidence rate
epidemic rate - ANSWERS--incidence rate
Which of the following is not a property of a slime layer?
helps retain water for the cell
used for attachment to substrates
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used for metabolism
composed of extracellular polysaccharides - ANSWERS--used for
metabolism
A microbial poison produced during the metabolism of a bacterium and
released into the environment is a(n)
A. endotoxin
B. antitoxin
C. slime layer
D. exotoxin
E. toxoid - ANSWERS--exotoxin
A bacterial cell capable of dividing by binary fission under
environmentally favorable conditions, or capable of producing
endospores for survival under harsh/adverse environmental conditions
is called a(n) __________. - ANSWERS--vegetative cell
Match the type of symbiotic relationship with the effects on the two
different organisms. ("+" = Benefits; "-" = Is Harmed; "0" = Neither
Benefits Nor is Harmed)
MICROBIOLOGY EXAM 3 TEST FINAL EXAM AND
PRACTICE EXAM 2026/2027 BANK 2 VERSIONS QUESTIONS
WITH DETAILED VERIFIED ANSWERS / EXAM QUESTIONS
WILL COME FROM HERE (100% CORRECT ANSWERS/ A+
GRADED
Name three mechanical factors that serve as primary barriers to
infectious agents. - ANSWERS--Secretions; Flushing of Urine, Tears, &
Sweat; Ciliary Escalator; Peristalsis; Blinking of Eyelids
Artificially-acquired, active immunity is a result of ..........? - ANSWERS--
Immunization (Vaccination)
The principal government agency responsible for tracking infectious
diseases in the United States is: - ANSWERS--Centers for Disease
Control and Prevention
Semmelweis advocated what as a method of preventing infection
during childbirth?
surgical gloves
handwashing
,2|Page
aseptic technique
disinfectant
antiseptic - ANSWERS--handwashing
Naturally-acquired, passive immunity is a result of ..........? - ANSWERS--
Mother's immunity: Trans-placental Antibody = Immunoglobulin G
(IgG); Breast Feeding of colostrum/breast milk containing
Immunoglobulins A, G, M (secretory IgA, IgG, IgM)
The presence of an axial filament would be associated with which of
the following diseases?
syphilis
gonorrhea
Lyme disease
Both A and B are correct.
,3|Page
Both A and C are correct. - ANSWERS--Both A and C are correct.
The number of new cases of a disease in a population over a specific
period of time compared with the population at risk is the:
prevalence rate
morbidity rate
mortality rate
incidence rate
epidemic rate - ANSWERS--incidence rate
Which of the following is not a property of a slime layer?
helps retain water for the cell
used for attachment to substrates
, 4|Page
used for metabolism
composed of extracellular polysaccharides - ANSWERS--used for
metabolism
A microbial poison produced during the metabolism of a bacterium and
released into the environment is a(n)
A. endotoxin
B. antitoxin
C. slime layer
D. exotoxin
E. toxoid - ANSWERS--exotoxin
A bacterial cell capable of dividing by binary fission under
environmentally favorable conditions, or capable of producing
endospores for survival under harsh/adverse environmental conditions
is called a(n) __________. - ANSWERS--vegetative cell
Match the type of symbiotic relationship with the effects on the two
different organisms. ("+" = Benefits; "-" = Is Harmed; "0" = Neither
Benefits Nor is Harmed)
