Question 1

Macrophages present antigens to T cells by digesting the pathogen and placing the pathogen's antigens on the macrophage plasma membrane along with an MHC "self" protein.

Accepted Answer

A) True 
 B)False

Question 2

When a person is hypersensitive to pollen, they have ___ in response to the antigens on pollen called ___.

Accepted Answer

A)   autoimmune disease; cytokines
B)   immunity; allergens
C)   an allergy; allergens
D)   an allergy; IgG
E)   immunity; antibodiesF) B) and C)
G) A) and C)

Question 3

Immediate allergic responses occur when

Accepted Answer

A)   IgE antibodies in red blood cells cause destruction of allergens.
B)   IgE antibodies in mast cells attach to allergens, releasing histamines.
C)   cytotoxic T cells produce histamine in response to allergens.
D)   memory T cells release cytokines in response to allergens.
E)   memory B cells respond to the presence of an allergen.F) None of the above
G) B) and E)

Question 4

Which of the following is not a lymphatic organ?

Accepted Answer

A)   thymus
B)   spleen
C)   pancreas
D)   bone marrow
E)   lymph nodeF) B) and C)
G) C) and D)

Question 5

Long term immunity to diseases such as measles occurs because

Accepted Answer

A)   memory mast cells produce antibodies in response to pathogens entering the body.
B)   plasma cells remain in the immune system to protect the body.
C)   memory B cells are produced in response to specific pathogens.
D)   neutrophils remain in the blood to phagocytize any new measles pathogens.
E)   helper T cells continue to produce cytokines indefinitely.F) D) and E)
G) All of the above

Question 6

___ cells are non-specific, destroying cells which do not exhibit "self" proteins.

Accepted Answer

A)   Complement
B)   Mast
C)   Natural killer
D)   Helper T
E)   PlasmaF) A) and D)
G) D) and E)

Question 7

Which one of the following is NOT an effect of an HIV infection?

Accepted Answer

A)   progression into AIDS
B)   number of T cells decreases
C)   hair loss
D)   chronic fever
E)   Kaposi's sarcoma, a form of cancerF) A) and E)
G) A) and D)

Question 8

Red bone marrow in adults produces only white blood cells.

Accepted Answer

A) True 
 B)False

Question 9

Figure: 
-This figure represents

Accepted Answer

A)   the events of the inflammatory response.
B)   the first stages of immunity.
C)   the complement system.
D)   the antibody response.
E)   the effects of an immunization on the blood.F) B) and E)
G) C) and D)

Question 10

Which of the following statements is NOT true regarding the complement proteins?

Accepted Answer

A)   They are blood plasma proteins.
B)   Some form the membrane attack complex which forms a hole in the bacterial plasma membrane.
C)   They may amplify the inflammatory response by attracting phagocytes to the site of the infection.
D)   They may bind to pathogens already coated with antibodies, ensuring they are phagocytized.
E)   Many proteins must be independently activated in order to have a significant impact on the immune response.F) A) and D)
G) C) and D)

Question 11

____________ cells kill virus-infected cells and tumor cells by cell-cell contact.

Accepted Answer

A)   Natural killer
B)   Plasma
C)   Cytotoxic T
D)   Memory B
E)   Helper TF) All of the above
G) A) and B)

Question 12

Neutrophils and macrophages are different in that

Accepted Answer

A)   neutrophils produce antibodies while macrophages do not.
B)   neutrophils produce histamines while macrophages produce antibodies.
C)   neutrophils travel to the site of injury while macrophages reside in certain tissues.
D)   neutrophils phagocytize pathogens while macrophages produce holes in a pathogen's membrane.
E)   neutrophils are part of the inflammatory response while macrophages are not.F) A) and B)
G) A) and C)

Question 13

Figure: 
-David was in a car accident and needed a blood transfusion due to his injuries. His brother, Steve, went to the hospital hoping to donate blood to be used in the transfusion. David's blood type is type B. Steve's blood type is type AB. What types of blood can David receive in a transfusion?

Accepted Answer

A)   A and AB
B)   B and O
C)   B only
D)   O only
E)   B, AB and OF) B) and D)
G) D) and E)

Exam 26: Defenses Against Diseases

When a person is hypersensitive to pollen, they have _ in response to the antigens on pollen called _.

Correct Answer
verified

Which one of the following is NOT an effect of an HIV infection?

Correct Answer
verified

Immediate allergic responses occur when

Correct Answer
verified

Red bone marrow in adults produces only white blood cells.

Correct Answer
verified

Which of the following statements is NOT true regarding the complement proteins?

Correct Answer
verified

Which of the following is not a lymphatic organ?

Correct Answer
verified

Long term immunity to diseases such as measles occurs because

Correct Answer
verified

Neutrophils and macrophages are different in that

Correct Answer
verified

Figure: -This figure represents

Correct Answer
verified

Macrophages present antigens to T cells by digesting the pathogen and placing the pathogen's antigens on the macrophage plasma membrane along with an MHC "self" protein.

Correct Answer
verified

Figure: -David was in a car accident and needed a blood transfusion due to his injuries. His brother, Steve, went to the hospital hoping to donate blood to be used in the transfusion. David's blood type is type B. Steve's blood type is type AB. What types of blood can David receive in a transfusion?

Correct Answer
verified

___ cells are non-specific, destroying cells which do not exhibit "self" proteins.

Correct Answer
verified

____________ cells kill virus-infected cells and tumor cells by cell-cell contact.

Correct Answer
verified

Exam 26: Defenses Against Diseases

When a person is hypersensitive to pollen, they have ___ in response to the antigens on pollen called ___.

Correct AnswerverifiedShow Answer

Which one of the following is NOT an effect of an HIV infection?

Correct AnswerverifiedShow Answer

Immediate allergic responses occur when

Correct AnswerverifiedShow Answer

Red bone marrow in adults produces only white blood cells.

Correct AnswerverifiedShow Answer

Which of the following statements is NOT true regarding the complement proteins?

Correct AnswerverifiedShow Answer

Which of the following is not a lymphatic organ?

Correct AnswerverifiedShow Answer

Long term immunity to diseases such as measles occurs because

Correct AnswerverifiedShow Answer

Neutrophils and macrophages are different in that

Correct AnswerverifiedShow Answer

Figure: -This figure represents

Correct AnswerverifiedShow Answer

Macrophages present antigens to T cells by digesting the pathogen and placing the pathogen's antigens on the macrophage plasma membrane along with an MHC "self" protein.

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

___ cells are non-specific, destroying cells which do not exhibit "self" proteins.

Correct AnswerverifiedShow Answer

____________ cells kill virus-infected cells and tumor cells by cell-cell contact.

Correct AnswerverifiedShow Answer

When a person is hypersensitive to pollen, they have _ in response to the antigens on pollen called _.

Correct Answer
verified

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