Question 1

The same bacteria that are associated with periodontitis are associated with ____.

Accepted Answer

A) atherosclerosis 
B) the common cold 
C) influenza 
D) tuberculosis 
E) stomach ulcers 
A) atherosclerosis 
B) the common cold 
C) influenza 
D) tuberculosis 
E) stomach ulcers A

Question 2

What enzyme protects the linings of internal tubes from bacteria?

Accepted Answer

A) lactic acid 
B) complement 
C) cytokine 
D) mucus 
E) lysozyme 
A) lactic acid 
B) complement 
C) cytokine 
D) mucus 
E) lysozyme E

Question 3

A normally harmless substance that produces an immune response in some people is a(n) ____.

Accepted Answer

A) pathogen 
B) cytokine 
C) histamine 
D) allergen 
E) antibody 
A) pathogen 
B) cytokine 
C) histamine 
D) allergen 
E) antibody D

Question 4

Community immunity is only effective if at least ____ percent of the population is vaccinated against a disease.

Accepted Answer

A) 60 
B) 72 
C) 80 
D) 92 
E) 100 
A) 60 
B) 72 
C) 80 
D) 92 
E) 100

Question 5

Which immunoglobulin is the most common in gland secretions?

Accepted Answer

A) IgG 
B) IgA 
C) IgD 
D) IgM 
E) IgE 
A) IgG 
B) IgA 
C) IgD 
D) IgM 
E) IgE

Question 6

Four of the five answers listed below are targets of the immune system. Select the exception.

Accepted Answer

A) virus 
B) normal cells 
C) cancer cells 
D) bacteria 
E) debris and dead cells 
A) virus 
B) normal cells 
C) cancer cells 
D) bacteria 
E) debris and dead cells

Question 7

What part of the human body contains strong salts that can kill bacteria?

Accepted Answer

A) lungs 
B) mouth 
C) small intestine 
D) stomach 
E) large intestine 
A) lungs 
B) mouth 
C) small intestine 
D) stomach 
E) large intestine

Question 8

Antigen binding sites on one antibody ____.

Accepted Answer

A) are the same as on all other antibodies 
B) will bind to several different antigens 
C) are unique and specific to one antigen 
D) consist of light chain variable regions only 
E) are the same as all membrane bound receptors 
A) are the same as on all other antibodies 
B) will bind to several different antigens 
C) are unique and specific to one antigen 
D) consist of light chain variable regions only 
E) are the same as all membrane bound receptors

Question 9

Self-recognition is based on T cell receptors recognizing ____.

Accepted Answer

A) MHC markers 
B) perforins 
C) complement 
D) naive B cells 
E) antibodies 
A) MHC markers 
B) perforins 
C) complement 
D) naive B cells 
E) antibodies

Question 10

Match the cell type to the correct description.
-anchored in tissues; participates in inflammation and allergies

Accepted Answer

A) eosinophil 
B) mast cell 
C) neutrophil 
D) basophil 
E) dendritic cell 
A) eosinophil 
B) mast cell 
C) neutrophil 
D) basophil 
E) dendritic cell

Question 11

What cell type engulfs pathogens and foreign particles and signals to the immune system to report the presence of a threat?

Accepted Answer

A) neutrophils 
B) B cells 
C) macrophages 
D) mucus-producing cells 
E) normal flora 
A) neutrophils 
B) B cells 
C) macrophages 
D) mucus-producing cells 
E) normal flora

Question 12

Which signaling molecules are used by cells of the immune system to communicate with each other?

Accepted Answer

A) complement 
B) neurotransmitters 
C) hormones 
D) cytokines 
E) PAMPs 
A) complement 
B) neurotransmitters 
C) hormones 
D) cytokines 
E) PAMPs

Question 13

Which immunoglobulin is able to pass the placenta to protect the fetus from pathogens?

Accepted Answer

A) IgG 
B) IgA 
C) IgD 
D) IgM 
E) IgE 
A) IgG 
B) IgA 
C) IgD 
D) IgM 
E) IgE

Question 14

​T cell receptors can discriminate between ____ (self) and ____ (nonself).

Accepted Answer

A) ​antigens; MHC markers 
B) ​MHC markers; antigens 
C) ​MHC markers; antibodies 
D) ​B cell receptors; T cell receptors 
E) ​IgM; IgD 
A) ​antigens; MHC markers 
B) ​MHC markers; antigens 
C) ​MHC markers; antibodies 
D) ​B cell receptors; T cell receptors 
E) ​IgM; IgD

Question 15

Match the descriptions with the mechanism of innate immunity.
-works hand in hand with adaptive immune responses

Accepted Answer

A) complement 
B) inflammation 
C) fever 
A) complement 
B) inflammation 
C) fever

Question 16

Which immune cells can kill cancerous cells that lack MHC markers?

Accepted Answer

A) effector B cells only 
B) cytotoxic T cells only 
C) natural killer cells only 
D) cytotoxic T cells and natural killer cells 
E) cytotoxic T cells and effector B cells 
A) effector B cells only 
B) cytotoxic T cells only 
C) natural killer cells only 
D) cytotoxic T cells and natural killer cells 
E) cytotoxic T cells and effector B cells

Question 17

The infinite variety of antibodies that can be generated by B cells is due to ____.

Accepted Answer

A) the infinite variety of genes in these cells 
B) the use of gene segments to produce an infinite variety of proteins 
C) the recombination of genes due to crossing over 
D) random mutations 
E) modifying the protein after an antigen is detected 
A) the infinite variety of genes in these cells 
B) the use of gene segments to produce an infinite variety of proteins 
C) the recombination of genes due to crossing over 
D) random mutations 
E) modifying the protein after an antigen is detected

Question 18

What best describes an inappropriate immune response to normal body tissues?

Accepted Answer

A) allergy 
B) immunodeficiency 
C) anaphylactic shock 
D) autoimmune disease 
E) septic shock 
A) allergy 
B) immunodeficiency 
C) anaphylactic shock 
D) autoimmune disease 
E) septic shock

Question 19

Match the descriptions with the mechanism of innate immunity.
-triggered by cytokine stimulation of hypothalamus

Accepted Answer

A) complement 
B) inflammation 
C) fever 
A) complement 
B) inflammation 
C) fever

Question 20

The human immunodeficiency virus (HIV) primarily infects which cells?

Accepted Answer

A) red blood cells 
B) mast cells and basophils 
C) B cells and cytotoxic T cells 
D) NK cells 
E) macrophages, dendritic cells, and helper T cells 
A) red blood cells 
B) mast cells and basophils 
C) B cells and cytotoxic T cells 
D) NK cells 
E) macrophages, dendritic cells, and helper T cells

Exam 34: Immunity

The same bacteria that are associated with periodontitis are associated with ____.

What enzyme protects the linings of internal tubes from bacteria?

A normally harmless substance that produces an immune response in some people is a(n) ____.

Community immunity is only effective if at least ____ percent of the population is vaccinated against a disease.

Which immunoglobulin is the most common in gland secretions?

Four of the five answers listed below are targets of the immune system. Select the exception.

What part of the human body contains strong salts that can kill bacteria?

Antigen binding sites on one antibody ____.

Self-recognition is based on T cell receptors recognizing ____.

Match the cell type to the correct description. -anchored in tissues; participates in inflammation and allergies

What cell type engulfs pathogens and foreign particles and signals to the immune system to report the presence of a threat?

Which signaling molecules are used by cells of the immune system to communicate with each other?

Which immunoglobulin is able to pass the placenta to protect the fetus from pathogens?

​T cell receptors can discriminate between ____ (self) and ____ (nonself).

Match the descriptions with the mechanism of innate immunity. -works hand in hand with adaptive immune responses

Which immune cells can kill cancerous cells that lack MHC markers?

The infinite variety of antibodies that can be generated by B cells is due to ____.

What best describes an inappropriate immune response to normal body tissues?

Match the descriptions with the mechanism of innate immunity. -triggered by cytokine stimulation of hypothalamus

The human immunodeficiency virus (HIV) primarily infects which cells?

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Filters

T cell receptors can discriminate between (self) and (nonself).