Question 1

Treatment with certain drugs to reduce transplant rejection can cause

Accepted Answer

A)   immunologic surveillance.
B)   immunotherapy.
C)   immunologic enhancement.
D)   immunosuppression.
E)   autoimmunity.

Question 2

All stem cells are derived from embryonic stem cells.

Accepted Answer

A) True 
 B)False

Question 3

All of the following are false regarding Herceptin EXCEPT

Accepted Answer

A)   it neutralizes the growth factor EGF.
B)   it is a vaccine to prevent the development of cancer.
C)   it acts as an immunotoxin to target and kill cancer cells.
D)   it is an endotoxin that stimulates TNF by macrophages.
E)   it is used to treat some breast cancer patients.

Question 4

The process of desensitization to prevent allergies involves the injection of increasing amounts of

Accepted Answer

A)   RhoGAM.
B)   antihistamine.
C)   IgE.
D)   antigen.
E)   IgG.

Question 5

Which of the following statements about type IV reactions is FALSE?

Accepted Answer

A)   Reactions are not apparent for a day or more.
B)   Reactions are primarily due to T cell proliferation.
C)   Cytokines initiate tissue damage.
D)   Allergic contact dermatitis is an example.
E)   Hemolytic disease of the newborn is an example.

Question 6

All hypersensitivities involve antibody- antigen reactions.

Accepted Answer

A) True 
 B)False

Question 7

Explain why a transplant tissue would be rejected if that tissue had different HLAs compared to the HLAs of the recipient. How can this rejection be decreased?

Accepted Answer

When a transplant tissue has different h...

Question 8

A healthy immune system destroys cancer cells with

Accepted Answer

A)   CTLs.
B)   activated macrophages.
C)   CD+ T cells.
D)   CTLs and activated macrophages.
E)   tumor- specific antigens.

Question 9

Which antibodies will be in the serum of a person with blood type B, Rh+?

Accepted Answer

A)   anti- B
B)   anti- B, anti- Rh
C)   anti- A, anti- Rh
D)   anti- A, anti- B, anti- Rh
E)   anti- A

Question 10

Attachment of HIV to the target cell depends on

Accepted Answer

A)   gp120 combining with the chemokine receptor CCR5.
B)   gp120 combining with the CD4+ receptor.
C)   CXCR4 binding to the CD4+ receptor.
D)   gp120 binding to the CD4+ plasma membrane.
E)   gp41 binding to the CD4+ receptor.

Question 11

Figure 19.1
 
-In immune complex reaction shown in Figure 19.1, what is the end result of the reaction?

Accepted Answer

A)   IgG is directed against cell membrane antigens.
B)   Endothelial cells are damaged.
C)   Antibodies destroy neutrophils.
D)   Complement is activated.
E)   Neutrophils are attracted and release enzymes.

Question 12

Individuals who do not express CCR5 are highly resistant to infection by HIV.

Accepted Answer

A) True 
 B)False

Question 13

Which of the following describes a cytotoxic autoimmune reaction?

Accepted Answer

A)   Antibodies are not made.
B)   Antibodies react to cell- surface antigens.
C)   Mediate by T cells.
D)   Cells are killed.
E)   Immune complexes form.

Question 14

Allergic contact dermatitis is due to

Accepted Answer

A)   activated macrophages.
B)   sensitized T cells.
C)   IgM antibodies.
D)   IgG antibodies.
E)   IgE antibodies.

Question 15

HIV attack of CD4+ T cells causes suppression of both cell- mediated and humoral immune responses.

Accepted Answer

A) True 
 B)False

Question 16

Which of the following is the least likely vaccine against HIV?

Accepted Answer

A)   subunit
B)   glycoprotein
C)   protein core
D)   attenuated virus
E)   All of these vaccines are equally likely.

Question 17

Hemolytic disease of the newborn can result from an

Accepted Answer

A)   Rh- mother with an Rh+ fetus.
B)   AB mother with an O fetus.
C)   Rh+ mother with an Rh- fetus.
D)   Rh- mother and an A fetus.
E)   AB mother with a B fetus.

Question 18

Figure 19.1
 
-In immune complex reaction shown in Figure 19.1, what is the structure labeled "a"?

Accepted Answer

A)   complement
B)   antigen
C)   mast cell
D)   antibody
E)   neutrophil

Question 19

Which of the following statements about type I reactions is FALSE?

Accepted Answer

A)   The symptoms are due to histamine.
B)   They involve helper T cells.
C)   Antibodies bind to mast cells and basophils.
D)   The symptoms occur soon after exposure to an antigen.
E)   They involve IgE antibodies.

Question 20

Immunodeficiencies are a result of all of the following EXCEPT

Accepted Answer

A)   DiGeorge syndrome.
B)   autoimmune diseases.
C)   cyclosporine.
D)   Hodgkin's disease.
E)   HIV infection.

Exam 19: Disorders Associated With the Immune System

Explain why a transplant tissue would be rejected if that tissue had different HLAs compared to the HLAs of the recipient. How can this rejection be decreased?

Correct AnswerAnswered by ExamLex AIWhen a transplant tissue has different h...View AnswerShow Answer

All of the following are false regarding Herceptin EXCEPT

Correct AnswerverifiedShow Answer

Which antibodies will be in the serum of a person with blood type B, Rh+?

Correct AnswerverifiedShow Answer

Hemolytic disease of the newborn can result from an

Correct AnswerverifiedShow Answer

Treatment with certain drugs to reduce transplant rejection can cause

Correct AnswerverifiedShow Answer

Which of the following statements about type I reactions is FALSE?

Correct AnswerverifiedShow Answer

Which of the following is the least likely vaccine against HIV?

Correct AnswerverifiedShow Answer

The process of desensitization to prevent allergies involves the injection of increasing amounts of

Correct AnswerverifiedShow Answer

Figure 19.1 -In immune complex reaction shown in Figure 19.1, what is the structure labeled "a"?

Correct AnswerverifiedShow Answer

Which of the following describes a cytotoxic autoimmune reaction?

Correct AnswerverifiedShow Answer

Allergic contact dermatitis is due to

Correct AnswerverifiedShow Answer

Immunodeficiencies are a result of all of the following EXCEPT

Correct AnswerverifiedShow Answer

HIV attack of CD4+ T cells causes suppression of both cell- mediated and humoral immune responses.

Correct AnswerverifiedShow Answer

All hypersensitivities involve antibody- antigen reactions.

Correct AnswerverifiedShow Answer

Figure 19.1 -In immune complex reaction shown in Figure 19.1, what is the end result of the reaction?

Correct AnswerverifiedShow Answer

A healthy immune system destroys cancer cells with

Correct AnswerverifiedShow Answer

Individuals who do not express CCR5 are highly resistant to infection by HIV.

Correct AnswerverifiedShow Answer

Which of the following statements about type IV reactions is FALSE?

Correct AnswerverifiedShow Answer

All stem cells are derived from embryonic stem cells.

Correct AnswerverifiedShow Answer

Attachment of HIV to the target cell depends on

Correct AnswerverifiedShow Answer

Correct Answer
Answered by ExamLex AI
When a transplant tissue has different h...
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Which antibodies will be in the serum of a person with blood type B, Rh⁺?

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HIV attack of CD4⁺T cells causes suppression of both cell- mediated and humoral immune responses.

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