Question 1

In an antibody-mediated immune response, with which cells do naïve helper T cells interact?

Accepted Answer

A)  antigen-presenting B cells 
B)  effector helper T cells 
C)  memory B cells 
D)  antigen-presenting dendritic cells 
E)  effector B cells

Question 2

Place the following events of an inflammatory event in response to bacterial infection in proper order.
1) Activated complement binds to bacteria.
2) Capillary permeability increases.
3) Phagocytes engulf bacteria.
4) Mast cell receptors bind to bacterial antigens.
5) Signaling molecules cause arterioles to widen.​

Accepted Answer

A)  ​4-5-2-1-3 
B)  4-3-1-2-5 
C)  ​5-2-1-4-3 
D)  ​1-3-4-2-5 
E)  ​5-2-4-1-3

Question 3

Complement proteins ____.​

Accepted Answer

A)  ​prevent pathogens from entering the interior environment of the body 
B)  ​bore channels in targeted cells, causing them to burst 
C)  ​inactivate other complement proteins 
D)  ​bind to pathogens making them a target for antibodies 
E)  ​destroy healthy body cells as well as invading microorganisms

Question 4

The cell-mediated immune response is most effective against ____.

Accepted Answer

A)  cancer cells only 
B)  viral-infected cells only 
C)  bacteria circulating in the blood 
D)  both cancer cells and viral infected cells 
E)  normal flora

Question 5

Match the process with the proper description.
-a temporary rise in the body's temperature set point in response to infection or tissue damage
A)inflammation
B)fever
C)phagocytosis
D)complement
E)mucus
F)surface barriers
G)allergy

Accepted Answer

The answer of Match the process with the proper description.
-a...

Question 6

Match the disease with the proper description.
-an autoimmune disorder
A)acne
B)atherosclerosis
C)smallpox
D)AIDS
E)multiple sclerosis
F)anaphylactic shock
G)cervical cancer

Accepted Answer

The answer of Match the disease with the proper description.
-an...

Question 7

Smallpox ____.

Accepted Answer

A)  was the target of the first vaccine 
B)  is spread by infected cattle 
C)  is only found in subtropical climates 
D)  was eradicated by 1850 
E)  is unrelated to cowpox

Question 8

White blood cells that engulf a microorganism and then explode their contents, creating a net that traps and kills pathogens are known as ____.​

Accepted Answer

A)  ​neutrophils 
B)  ​macrophages 
C)  ​B lymphocytes 
D)  ​dendritic cells 
E)  ​eosinophils

Question 9

Innate immunity begins when ____.​

Accepted Answer

A)  ​triggered by adaptive immunity 
B)  ​PAMP receptors bind to antigen 
C)  ​white blood cells start dividing 
D)  ​complement proteins are released 
E)  ​PAMPs are detected

Question 10

Proteins leaking out of damaged body cells activate ____, which results in a cascade of reactions that enhance phagocytosis of damaged cells by white blood cells.​

Accepted Answer

A)  ​complement proteins 
B)  ​inflammatory proteins 
C)  ​PAMPs 
D)  ​viral DNA 
E)  ​killer T cells

Question 11

Match the disease with the proper description.
-caused by inflammation related to periodontitis
A)acne
B)atherosclerosis
C)smallpox
D)AIDS
E)multiple sclerosis
F)anaphylactic shock
G)cervical cancer

Accepted Answer

The answer of Match the disease with the proper description.
-caused...

Question 12

Identify the site indicated by the arrows in the diagram.

Accepted Answer

A)  complement binding site of an antibody 
B)  antigen binding site of an antibody 
C)  MHC binding site of an antigen 
D)  complement binding site of T cell receptor 
E)  MHC binding site of a T cell receptor

Question 13

In adaptive immune responses, which cell type is capable of acting as an antigen-presenting cell?​

Accepted Answer

A)  ​T cell 
B)  ​monocyte 
C)  ​eosinophil 
D)  ​B cell 
E)  ​basophil

Question 14

Match the molecule with the proper description.
-cause arterioles to widen and capillaries to become more permeable during an inflammation reaction
A)cytokines
B)histamines and prostaglandins
C)lysozyme
D)complement proteins
E)prostaglandins only

Accepted Answer

The answer of Match the molecule with the proper description.
-cause...

Question 15

When a second infection occurs by the same pathogen, the immune response occurs more rapidly due to ____.​

Accepted Answer

A)  ​effector cells 
B)  ​memory cells 
C)  ​naive T cells 
D)  ​neutrophils 
E)  ​eosinophils

Question 16

Antihistamines relieve allergy symptoms by ____.​

Accepted Answer

A)  ​inhibiting the release of histamines and cytokines 
B)  ​binding directly to histamines 
C)  destroying mast cells before they can produce histamines​ 
D)  ​binding to the allergens 
E)  ​stimulating effector T cells to produce more cytokines

Question 17

A naïve lymphocyte ____.​

Accepted Answer

A)  ​is bound directly to an antigen 
B)  ​has not yet bound to antigen 
C)  ​is an antigen-presenting cell 
D)  is a phagocyte 
E)  ​is inflammatory

Question 18

Natural killer cells are capable of ____.​

Accepted Answer

A)  ​stimulating T cell memory 
B)  ​killing bacteria in the interstitial fluid 
C)  ​destroying body cells lacking MHC markers 
D)  ​shutting down adaptive immune responses 
E)  ​destroying parasites in the bloodstream

Question 19

Match the disease with the proper description.
-individuals exposed to cowpox are immune to this infection
A)acne
B)atherosclerosis
C)smallpox
D)AIDS
E)multiple sclerosis
F)anaphylactic shock
G)cervical cancer

Accepted Answer

The answer of Match the disease with the proper description.
-individuals...

Question 20

Fever enhances an immune response by ____.

Accepted Answer

A)  increasing the rate of enzyme activity 
B)  decreasing phagocytosis of invading pathogens 
C)  increasing blood flow to the site of infection 
D)  decreasing the reproduction rate of microorganisms 
E)  decreasing heart rate and respiration

Exam 23: Immunity

In an antibody-mediated immune response, with which cells do naïve helper T cells interact?

Complement proteins ____.​

The cell-mediated immune response is most effective against ____.

Match the process with the proper description. -a temporary rise in the body's temperature set point in response to infection or tissue damage A)inflammation B)fever C)phagocytosis D)complement E)mucus F)surface barriers G)allergy

Match the disease with the proper description. -an autoimmune disorder A)acne B)atherosclerosis C)smallpox D)AIDS E)multiple sclerosis F)anaphylactic shock G)cervical cancer

Smallpox ____.

White blood cells that engulf a microorganism and then explode their contents, creating a net that traps and kills pathogens are known as ____.​

Innate immunity begins when ____.​

Proteins leaking out of damaged body cells activate ____, which results in a cascade of reactions that enhance phagocytosis of damaged cells by white blood cells.​

Match the disease with the proper description. -caused by inflammation related to periodontitis A)acne B)atherosclerosis C)smallpox D)AIDS E)multiple sclerosis F)anaphylactic shock G)cervical cancer

Identify the site indicated by the arrows in the diagram.

In adaptive immune responses, which cell type is capable of acting as an antigen-presenting cell?​

Match the molecule with the proper description. -cause arterioles to widen and capillaries to become more permeable during an inflammation reaction A)cytokines B)histamines and prostaglandins C)lysozyme D)complement proteins E)prostaglandins only

When a second infection occurs by the same pathogen, the immune response occurs more rapidly due to ____.​

Antihistamines relieve allergy symptoms by ____.​

A naïve lymphocyte ____.​

Natural killer cells are capable of ____.​

Match the disease with the proper description. -individuals exposed to cowpox are immune to this infection A)acne B)atherosclerosis C)smallpox D)AIDS E)multiple sclerosis F)anaphylactic shock G)cervical cancer

Fever enhances an immune response by ____.

Complement proteins ____.

White blood cells that engulf a microorganism and then explode their contents, creating a net that traps and kills pathogens are known as ____.

Innate immunity begins when ____.

Proteins leaking out of damaged body cells activate ____, which results in a cascade of reactions that enhance phagocytosis of damaged cells by white blood cells.

In adaptive immune responses, which cell type is capable of acting as an antigen-presenting cell?

When a second infection occurs by the same pathogen, the immune response occurs more rapidly due to ____.

Antihistamines relieve allergy symptoms by ____.

A naïve lymphocyte ____.

Natural killer cells are capable of ____.