Chamberlain Microbiology Final Exam Predictor Test
CHAMBERLAIN MICROBIOLOGY FINAL EXAM PREDICTOR TEST
WITH 450 VERIFIED QUESTIONS AND CORRECT ANSWERS WITH
DETAILED RATIONALES GRADED A+ / MICROBIOLOGY FINAL
EXAM PREP TEST LATEST
How do superantigens enable pathogens to hide from the immune system if they
actually stimulate the immune system?
a. they cause fever, which destroys the complement proteins
b. they cause the immune system to destroy IgA antibodies
c. they cause the immune system to produce an exaggerated response, distracting
it from the actual pathogen
d. they cause the immune system to turn on itself - Correct Answer-c. they cause
the immune system to produce an exaggerated response, distracting it from the
actual pathogen
how can capsules enable bacteria to evade the immune system?
a. capsules block the complement biding sites on the surface of the pathogen
b. a capsule is a superantigen that distracts the immune system
c. capsules can bind up IgA, rendering it inactive - Correct Answer-a. capsules
block the complement binding sites on the surface of the pathogen
an endotoxin that has the ability to kill or damage host cells is referred to as a(n)...
a. superantigen
b. cytotoxin
c. enterotoxin
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, Chamberlain Microbiology Final Exam Predictor Test
d. neurotoxin
e. A-B toxin - Correct Answer-b. cytotoxin
which domain of the A-B toxin binds to cell surface receptors on the host cell?
a. B domain
b. A-B toxins do not bind to cell surfaces
c. both the A and B domains have the ability to bind to cell surface receptors
d. A domain - Correct Answer-a. B domain
how are super antigens different fro other types of exotoxins?
a. super antigens must be endocytosed into a target cell before becoming active
b. superantigens only act against host neurons
c. superantigens cause an overstimulation of the host immune system
d. superantigens are comprised of two functional domains - Correct Answer-c.
superantigens cause an overstimulation of the host immune system
a person who attended a picnic early in the day develops a very high fever and is
unresponsive by the evening. This person most likely has been exposed to a(n)...
a. superantigen
b. enterotoxin
c. membrane disrupting toxin
d. cytotoxin - Correct Answer-a. superantigen
2|Page
, Chamberlain Microbiology Final Exam Predictor Test
a patient who has been hospitalized with uncontrolled muscle spasms has
probably been infected with bacteria that secrete a(n)...
a. neurotoxin
b. superantigen
c. enterotoxin
d. membrane disrupting toxin - Correct Answer-a. neurotoxin
dental plaque consists of biofilm, with bacteria carefully arranged in a community.
What are the advantages of forming biofilm?
a. biofilms provide a way for bacteria to quickly move from the surface into the
bloodstream
b. biofilms produce an extracellular polymer that digests enamel
c. biofilms help to shift nutrients to the bacteria in the center
d. biofilms provide protection from immune attack - Correct Answer-d. biofilms
provide protection from immune attack
Although it had been thought that dental plaque consisted primarily of
streptococci, more recent research showed that a variety of microbes are present.
According to the chapter, what approaches were used to identify these additional
microbes and to determine their 3D structure in the biofilm?
a. analysis of oxygen consumption
b. streak plates/spread plates/ pour plates
c. phylogenetic probes/ flurorescent in situ hybridization
d. metagenomic analysis alone - Correct Answer-c. phylogenetic
probes/fluorescent in situ hybridization
3|Page
, Chamberlain Microbiology Final Exam Predictor Test
how are immune cells able to detect foreign pathogens?
a. they are able to detect structures on the foreign cells that are not found in the
host
b. they can compare the DNA sequences from the foreign cells to host DNA
c. they detect foreign, unfamiliar chemical substances released by the invading
cells - Correct Answer-a. they are able to detect structures on the surfaces of
foreign cells that are not found in the host
how does a capsule help certain bacteria evade detection by the immune system?
a. capsules allow the bacteria to stick together, creating a larger mass that is too
big for immune cells to engulf
b. capsules have the ability to destroy antibodies secreted by the immune system
c. the capsule makes the bacterium too sticky to be phagocytosed by the immune
cells
d. the capsule is composed of polysaccharides that are similar to those found int
he host; thus, the immune system does not recognize it as foreign - Correct
Answer-d. the capsule is composed of polysaccharides that are simlar to those
found int he host; thus, the immune system does not recognize it as foreign
which of the following microorganisms actually grows inside the macrophage?
a. tuberulosis bacterium
b. shigella
c. leishmania
d. legionella
4|Page
CHAMBERLAIN MICROBIOLOGY FINAL EXAM PREDICTOR TEST
WITH 450 VERIFIED QUESTIONS AND CORRECT ANSWERS WITH
DETAILED RATIONALES GRADED A+ / MICROBIOLOGY FINAL
EXAM PREP TEST LATEST
How do superantigens enable pathogens to hide from the immune system if they
actually stimulate the immune system?
a. they cause fever, which destroys the complement proteins
b. they cause the immune system to destroy IgA antibodies
c. they cause the immune system to produce an exaggerated response, distracting
it from the actual pathogen
d. they cause the immune system to turn on itself - Correct Answer-c. they cause
the immune system to produce an exaggerated response, distracting it from the
actual pathogen
how can capsules enable bacteria to evade the immune system?
a. capsules block the complement biding sites on the surface of the pathogen
b. a capsule is a superantigen that distracts the immune system
c. capsules can bind up IgA, rendering it inactive - Correct Answer-a. capsules
block the complement binding sites on the surface of the pathogen
an endotoxin that has the ability to kill or damage host cells is referred to as a(n)...
a. superantigen
b. cytotoxin
c. enterotoxin
1|Page
, Chamberlain Microbiology Final Exam Predictor Test
d. neurotoxin
e. A-B toxin - Correct Answer-b. cytotoxin
which domain of the A-B toxin binds to cell surface receptors on the host cell?
a. B domain
b. A-B toxins do not bind to cell surfaces
c. both the A and B domains have the ability to bind to cell surface receptors
d. A domain - Correct Answer-a. B domain
how are super antigens different fro other types of exotoxins?
a. super antigens must be endocytosed into a target cell before becoming active
b. superantigens only act against host neurons
c. superantigens cause an overstimulation of the host immune system
d. superantigens are comprised of two functional domains - Correct Answer-c.
superantigens cause an overstimulation of the host immune system
a person who attended a picnic early in the day develops a very high fever and is
unresponsive by the evening. This person most likely has been exposed to a(n)...
a. superantigen
b. enterotoxin
c. membrane disrupting toxin
d. cytotoxin - Correct Answer-a. superantigen
2|Page
, Chamberlain Microbiology Final Exam Predictor Test
a patient who has been hospitalized with uncontrolled muscle spasms has
probably been infected with bacteria that secrete a(n)...
a. neurotoxin
b. superantigen
c. enterotoxin
d. membrane disrupting toxin - Correct Answer-a. neurotoxin
dental plaque consists of biofilm, with bacteria carefully arranged in a community.
What are the advantages of forming biofilm?
a. biofilms provide a way for bacteria to quickly move from the surface into the
bloodstream
b. biofilms produce an extracellular polymer that digests enamel
c. biofilms help to shift nutrients to the bacteria in the center
d. biofilms provide protection from immune attack - Correct Answer-d. biofilms
provide protection from immune attack
Although it had been thought that dental plaque consisted primarily of
streptococci, more recent research showed that a variety of microbes are present.
According to the chapter, what approaches were used to identify these additional
microbes and to determine their 3D structure in the biofilm?
a. analysis of oxygen consumption
b. streak plates/spread plates/ pour plates
c. phylogenetic probes/ flurorescent in situ hybridization
d. metagenomic analysis alone - Correct Answer-c. phylogenetic
probes/fluorescent in situ hybridization
3|Page
, Chamberlain Microbiology Final Exam Predictor Test
how are immune cells able to detect foreign pathogens?
a. they are able to detect structures on the foreign cells that are not found in the
host
b. they can compare the DNA sequences from the foreign cells to host DNA
c. they detect foreign, unfamiliar chemical substances released by the invading
cells - Correct Answer-a. they are able to detect structures on the surfaces of
foreign cells that are not found in the host
how does a capsule help certain bacteria evade detection by the immune system?
a. capsules allow the bacteria to stick together, creating a larger mass that is too
big for immune cells to engulf
b. capsules have the ability to destroy antibodies secreted by the immune system
c. the capsule makes the bacterium too sticky to be phagocytosed by the immune
cells
d. the capsule is composed of polysaccharides that are similar to those found int
he host; thus, the immune system does not recognize it as foreign - Correct
Answer-d. the capsule is composed of polysaccharides that are simlar to those
found int he host; thus, the immune system does not recognize it as foreign
which of the following microorganisms actually grows inside the macrophage?
a. tuberulosis bacterium
b. shigella
c. leishmania
d. legionella
4|Page
