1|Page
Microbiology Exam 3 - Rio Salado|
Comprehensive Q&A For Certification
Success
A bone marrow transplant can be used as a treatment for different blood
deficiency diseases because the bone marrow cells are which of the following? -
correct-answer -pluripotent
Which of the following would be the best way to describe NK cells? - correct-
answer -Leukocytes that search and destroy infected cells
Which of the following results from the release of cytokines from injured tissue? -
correct-answer -diapedesis of neutrophils
Which of the following is a sign that neutrophils are actively fighting an infection?
- correct-answer -pus formation
Why can a natural killer cell recognize a cell infected with a virus? - correct-answer
-Antigens for the virus are presented on the surface of the cell.
,2|Page
An MHC II antigen-presenting cell is presenting antigens for which of the
following? - correct-answer -foreign invaders
Which of the following describes T cells? - correct-answer -They are formed in the
bone marrow and mature in the thymus.
Which of the following viral multiplication steps would be stopped as a direct
result of antibody binding to a virus? - correct-answer -Attachment
Why is the lag period more extended when a person is exposed to a microbe for
the first time? - correct-answer -It takes time for B cell activation to occur.
Which antigen class passes through the placental barrier to give passive immunity
to fetuses? - correct-answer -IgG
Which of the following is necessary for T helper cells to activate B cells? - correct-
answer -Interaction of CD4 with MHC II antigen presentation
,3|Page
When a person is exposed to the same microbe more than once, they often have
such a sudden immune response that they do not show the disease's symptoms.
Which of the following is the reason for this? - correct-answer -Memory B cells are
already present from the first infection.
Which of the following is the correct order of the antibody-dependent cell-
mediated cytotoxicity response? - correct-answer -IgG binds to pathogen, NK cell
binds to IgG, cytokines are released
Which of the following is necessary for haptens to be recognized by antibodies? -
correct-answer -Attachment to a protein
Which of the following best represents antigens? - correct-answer -They elicit
immune responses.
Which of the following distinguishes between natural killer cells and Cytotoxic T
cells? - correct-answer -Cytotoxic T cells recognize antigen presentation with MHC
I, and natural killer cells recognize nonself molecules.
, 4|Page
Which of the following is caused by excessive activation of T cells? - correct-
answer -Toxic Shock Syndrome
Which of the following is the difference between adaptive and innate immunity? -
correct-answer -Adaptive immunity protects from a second exposure.
Which of the following is common between artificial and natural active immunity?
- correct-answer -They both occur because of exposure to a pathogen/antigen.
The necessary amount of individual T cells that a person needs to protect against
pathogens is due to which of the following? - correct-answer -Genetic
rearrangement in thymus
Which of the following is the last step in the activation of a helper T cell? - correct-
answer -Secretion of cytokines
Which of the following would be produced in excess if a person has a parasitic
infection? - correct-answer -IgE
Microbiology Exam 3 - Rio Salado|
Comprehensive Q&A For Certification
Success
A bone marrow transplant can be used as a treatment for different blood
deficiency diseases because the bone marrow cells are which of the following? -
correct-answer -pluripotent
Which of the following would be the best way to describe NK cells? - correct-
answer -Leukocytes that search and destroy infected cells
Which of the following results from the release of cytokines from injured tissue? -
correct-answer -diapedesis of neutrophils
Which of the following is a sign that neutrophils are actively fighting an infection?
- correct-answer -pus formation
Why can a natural killer cell recognize a cell infected with a virus? - correct-answer
-Antigens for the virus are presented on the surface of the cell.
,2|Page
An MHC II antigen-presenting cell is presenting antigens for which of the
following? - correct-answer -foreign invaders
Which of the following describes T cells? - correct-answer -They are formed in the
bone marrow and mature in the thymus.
Which of the following viral multiplication steps would be stopped as a direct
result of antibody binding to a virus? - correct-answer -Attachment
Why is the lag period more extended when a person is exposed to a microbe for
the first time? - correct-answer -It takes time for B cell activation to occur.
Which antigen class passes through the placental barrier to give passive immunity
to fetuses? - correct-answer -IgG
Which of the following is necessary for T helper cells to activate B cells? - correct-
answer -Interaction of CD4 with MHC II antigen presentation
,3|Page
When a person is exposed to the same microbe more than once, they often have
such a sudden immune response that they do not show the disease's symptoms.
Which of the following is the reason for this? - correct-answer -Memory B cells are
already present from the first infection.
Which of the following is the correct order of the antibody-dependent cell-
mediated cytotoxicity response? - correct-answer -IgG binds to pathogen, NK cell
binds to IgG, cytokines are released
Which of the following is necessary for haptens to be recognized by antibodies? -
correct-answer -Attachment to a protein
Which of the following best represents antigens? - correct-answer -They elicit
immune responses.
Which of the following distinguishes between natural killer cells and Cytotoxic T
cells? - correct-answer -Cytotoxic T cells recognize antigen presentation with MHC
I, and natural killer cells recognize nonself molecules.
, 4|Page
Which of the following is caused by excessive activation of T cells? - correct-
answer -Toxic Shock Syndrome
Which of the following is the difference between adaptive and innate immunity? -
correct-answer -Adaptive immunity protects from a second exposure.
Which of the following is common between artificial and natural active immunity?
- correct-answer -They both occur because of exposure to a pathogen/antigen.
The necessary amount of individual T cells that a person needs to protect against
pathogens is due to which of the following? - correct-answer -Genetic
rearrangement in thymus
Which of the following is the last step in the activation of a helper T cell? - correct-
answer -Secretion of cytokines
Which of the following would be produced in excess if a person has a parasitic
infection? - correct-answer -IgE
