Kuby Immunology Exam 1 Ch's 1-6
Questions With Correct Answers
Which is the best definition of "immunity"? - CORRECT ANSWER✔✔-
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a.The state of having been exposed to a pathogen repeatedly
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b.The state of being resistant to reinfection with a pathogen <- Correct!
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c.When an individual has never been exposed to a pathogen
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d.When the immune system is activated
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e.When physical barriers are not enough to prevent infection
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Effectors of the humoral immune system are known as - CORRECT
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ANSWER✔✔-a.antibodies
b.immunoglobulin
c.complement
d.B cells
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e.All of the above <-Correct!
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Which of the following cell types are lymphocytes? - CORRECT
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ANSWER✔✔-Macrophages
Mast cells |
Neutrophils
,Erythrocytes
T cells <-Correct!
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Which of the following is TRUE about antigens? - CORRECT
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ANSWER✔✔-They are always derived from pathogens. | | | | |
They are always proteins.
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Correct Answer -They are recognized by T cells or B cells.
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They must be microbial in origin.
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They usually cause cellular damage.
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Which of the following classes of cell surface receptors are directly
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encoded in the germline? - CORRECT ANSWER✔✔-TCR
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BCR
Correct! PRR |
Antibodies
All of the above
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What is the central mechanism for establishing self-tolerance? -
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CORRECT ANSWER✔✔-a. Self-reactive T cells and B cells are killed
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during development. <-Correct!
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b. Individuals that have immune systems that respond to self-antigens
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do not survive to reproduce.
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, c. Immune cells that react to self-antigens are turned off when they
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recognize self-tissues. |
d. Certain immune suppressive cytokines are maintained in tissues to
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dampen auto reactive immune responses.
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e. Peripheral tissues have mechanisms to kill T or B cells that respond to
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them.
Which of the following BEST describes chemokines? - CORRECT
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ANSWER✔✔-a. Membrane receptors that detect the presence of | | | | | | | |
soluble messengers in the environment
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b. Soluble proteins that recruit specific cells to an area Correct Answer
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c. Chemical messengers that induce cell differentiation
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d. Transcription factors that induce the expression of genes involved in
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cell adhesion
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e. Adhesion molecules that bind to the inside of blood vessels
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Which of the following statements BEST differentiates innate and
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adaptive immune responses? - CORRECT ANSWER✔✔-a. Innate
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responses are stronger during the primary and less important during the
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secondary response, while adaptive responses are less robust during
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primary responses and stronger during secondary responses. <-Correct!
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b. Innate responses are weaker during the primary and more robust
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during the secondary response, while adaptive responses are stronger
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during the primary and weaker during secondary responses.
| | | | | | |
Questions With Correct Answers
Which is the best definition of "immunity"? - CORRECT ANSWER✔✔-
| | | | | | | | |
a.The state of having been exposed to a pathogen repeatedly
| | | | | | | | |
b.The state of being resistant to reinfection with a pathogen <- Correct!
| | | | | | | | | | | |
c.When an individual has never been exposed to a pathogen
| | | | | | | | |
d.When the immune system is activated
| | | | |
e.When physical barriers are not enough to prevent infection
| | | | | | | |
Effectors of the humoral immune system are known as - CORRECT
| | | | | | | | | | |
ANSWER✔✔-a.antibodies
b.immunoglobulin
c.complement
d.B cells
|
e.All of the above <-Correct!
| | | |
Which of the following cell types are lymphocytes? - CORRECT
| | | | | | | | | |
ANSWER✔✔-Macrophages
Mast cells |
Neutrophils
,Erythrocytes
T cells <-Correct!
| |
Which of the following is TRUE about antigens? - CORRECT
| | | | | | | | | |
ANSWER✔✔-They are always derived from pathogens. | | | | |
They are always proteins.
| | |
Correct Answer -They are recognized by T cells or B cells.
| | | | | | | | | |
They must be microbial in origin.
| | | | |
They usually cause cellular damage.
| | | |
Which of the following classes of cell surface receptors are directly
| | | | | | | | | | |
encoded in the germline? - CORRECT ANSWER✔✔-TCR
| | | | | |
BCR
Correct! PRR |
Antibodies
All of the above
| | |
What is the central mechanism for establishing self-tolerance? -
| | | | | | | | |
CORRECT ANSWER✔✔-a. Self-reactive T cells and B cells are killed
| | | | | | | | | |
during development. <-Correct!
| | |
b. Individuals that have immune systems that respond to self-antigens
| | | | | | | | | |
do not survive to reproduce.
| | | |
, c. Immune cells that react to self-antigens are turned off when they
| | | | | | | | | | | |
recognize self-tissues. |
d. Certain immune suppressive cytokines are maintained in tissues to
| | | | | | | | | |
dampen auto reactive immune responses.
| | | |
e. Peripheral tissues have mechanisms to kill T or B cells that respond to
| | | | | | | | | | | | | |
them.
Which of the following BEST describes chemokines? - CORRECT
| | | | | | | | |
ANSWER✔✔-a. Membrane receptors that detect the presence of | | | | | | | |
soluble messengers in the environment
| | | |
b. Soluble proteins that recruit specific cells to an area Correct Answer
| | | | | | | | | | | |
c. Chemical messengers that induce cell differentiation
| | | | | |
d. Transcription factors that induce the expression of genes involved in
| | | | | | | | | | |
cell adhesion
|
e. Adhesion molecules that bind to the inside of blood vessels
| | | | | | | | | |
Which of the following statements BEST differentiates innate and
| | | | | | | | |
adaptive immune responses? - CORRECT ANSWER✔✔-a. Innate
| | | | | | |
responses are stronger during the primary and less important during the
| | | | | | | | | |
secondary response, while adaptive responses are less robust during
| | | | | | | | | |
primary responses and stronger during secondary responses. <-Correct!
| | | | | | | |
b. Innate responses are weaker during the primary and more robust
| | | | | | | | | | |
during the secondary response, while adaptive responses are stronger
| | | | | | | | |
during the primary and weaker during secondary responses.
| | | | | | |
