Question 1

The type of T cell that is primarily responsible for initiating and coordinating the adaptive immune response is the helper T cell.

Accepted Answer

A) True 
 B)False

Question 2

If a human fetus is ___________ and the pregnant woman is ______________,an incompatibility that destroys the red blood cells of the fetus may occur.

Accepted Answer

A)  Rh negative, Rh positive
B)  Type "AB", Type "O"
C)  Type "O", Type "AB"
D)  Rh positive, Rh negative
E)  Rh positive, Type "AB"

Question 3

Special cells produced by the immune system that are progeny of properly stimulated B cells and are antibody producing factories are:

Accepted Answer

A)  Cytotoxic T cells
B)  Helper T cells
C)  Plasma cells
D)  Macrophages
E)  Memory cells

Question 4

The region of an antibody molecule that recognizes and binds to an antigen is the:

Accepted Answer

A)  Hinge region
B)  Variable region
C)  Constant region
D)  Base of the antibody molecule
E)  Heavy chain only

Question 5

B cells or T cells are:

Accepted Answer

A)  Basophils
B)  Monocytes
C)  Lymphocytes
D)  Eosinophils
E)  Neutrophils

Question 6

figure 33.19 
-In figure 33.19,what is the independent variable?

Accepted Answer

A)  The number of children with allergies to dust mites
B)  The amount of interleukin-10 produced
C)  The number of white blood cells in the children's blood
D)  The amount of antibodies in the children's blood
E)  If the children were infected with flatworms

Question 7

Physical and chemical barriers that form the first line of innate defense include:

Accepted Answer

A)  The acidity of the stomach
B)  Tear fluid from the eye
C)  An un-punctured skin
D)  Mucus and cilia of the respiratory tract
E)  All are correct

Question 8

What was the researchers' final conclusion?

Accepted Answer

A)  That exposure to flatworms decreased IL-10 levels, suppressing the immune system, leading to fewer allergies
B)  That exposure to flatworms increased IL-10 levels, suppressing the immune system, leading to more allergies
C)  That exposure to flatworms decreased IL-10 levels, suppressing the immune system, leading to more allergies
D)  That exposure to flatworms increased IL-10 levels, suppressing the immune system, leading to fewer allergies
E)  That exposure to flatworms decreased IL-10 levels, but had no effect on the immune system or allergies

Question 9

The "master cells" of the immune system that initiate and coordinate the adaptive immune response are:

Accepted Answer

A)  Basophils
B)  Helper T cells
C)  Mast cells
D)  Cytotoxic T cells
E)  B cells

Question 10

Flatworms are very thin and lack a specialized respiratory or circulatory system.How does oxygen reach their cells?

Accepted Answer

A)  Through spiracles
B)  Diffusion through the wall of their body
C)  Through gills
D)  Through lungs
E)  Through capillaries

Question 11

Which of the following function primarily as phagocytes?

Accepted Answer

A)  Neutrophils
B)  Lymphocytes and macrophages
C)  Neutrophils and macrophages
D)  Lymphocytes
E)  Macrophages

Question 12

The innate chemical defense substance that activates T cells and B cells is:

Accepted Answer

A)  Histamine
B)  Complement
C)  Interleukin
D)  Interferon
E)  Epinephrine

Question 13

A disease causing agent that does not usually infect and cause disease in a person with a healthy immune system is termed a(an) :

Accepted Answer

A)  Pathogen
B)  Subtle pathogen
C)  Secondary pathogen
D)  Opportunistic pathogen
E)  Unlikely pathogen

Question 14

HIV-positive people track the progress of their disease with blood tests that measure the number of:

Accepted Answer

A)  Blood platelets
B)  B cells
C)  Helper T cells
D)  Cytotoxic T cells
E)  Plasma cells

Question 15

Which of the following is not part of the innate defense response?

Accepted Answer

A)  Cilia that sweep bacteria out of the respiratory tract
B)  The process of inflammation
C)  Antibody production
D)  Fever production
E)  The complement protein system

Question 16

Which of the following is a reason why fever is considered a defense mechanism?

Accepted Answer

A)  Fever inactivates (kills)  some viruses
B)  Fever speeds up the rate of phagocytosis
C)  Fever reduces the iron level in the blood, thereby retarding the growth of some bacteria
D)  Fever kills some bacteria
E)  All are correct

Question 17

A phagocyte is a:

Accepted Answer

A)  Cell that engulfs other cells and debris
B)  Cell that primarily is used to produce antibodies
C)  Cell that produces white blood cells
D)  Cell that produces platelets
E)  Cell that transports oxygen to tissues

Question 18

A Y-shaped protein that is produced in response to a specific antigen and recognizes these antigens is:

Accepted Answer

A)  Interferon
B)  An antibody
C)  Complement
D)  A phagocyte
E)  A B cell

Question 19

Many parasites are too large to be engulfed by phagocytosis.Which of the following would be effective in killing parasites?

Accepted Answer

A)  Complement
B)  T helper cells
C)  B cells
D)  Macrophages
E)  Basophils

Question 20

Rh incompatibility is due to an immune reaction to which of the following by a pregnant woman?

Accepted Answer

A)  A self antigen on red blood cells
B)  A foreign antibody on red blood cells
C)  A foreign antigen on red blood cells
D)  A self antibody on red blood cells

Exam 33: The Immune System

The innate chemical defense substance that activates T cells and B cells is:

Correct AnswerverifiedShow Answer

Flatworms are very thin and lack a specialized respiratory or circulatory system.How does oxygen reach their cells?

Correct AnswerverifiedShow Answer

Which of the following is a reason why fever is considered a defense mechanism?

Correct AnswerverifiedShow Answer

B cells or T cells are:

Correct AnswerverifiedShow Answer

figure 33.19 -In figure 33.19,what is the independent variable?

Correct AnswerverifiedShow Answer

Special cells produced by the immune system that are progeny of properly stimulated B cells and are antibody producing factories are:

Correct AnswerverifiedShow Answer

Which of the following is not part of the innate defense response?

Correct AnswerverifiedShow Answer

HIV-positive people track the progress of their disease with blood tests that measure the number of:

Correct AnswerverifiedShow Answer

The region of an antibody molecule that recognizes and binds to an antigen is the:

Correct AnswerverifiedShow Answer

Many parasites are too large to be engulfed by phagocytosis.Which of the following would be effective in killing parasites?

Correct AnswerverifiedShow Answer

The type of T cell that is primarily responsible for initiating and coordinating the adaptive immune response is the helper T cell.

Correct AnswerverifiedShow Answer

Physical and chemical barriers that form the first line of innate defense include:

Correct AnswerverifiedShow Answer

Which of the following function primarily as phagocytes?

Correct AnswerverifiedShow Answer

A phagocyte is a:

Correct AnswerverifiedShow Answer

Rh incompatibility is due to an immune reaction to which of the following by a pregnant woman?

Correct AnswerverifiedShow Answer

What was the researchers' final conclusion?

Correct AnswerverifiedShow Answer

If a human fetus is ___________ and the pregnant woman is ______________,an incompatibility that destroys the red blood cells of the fetus may occur.

Correct AnswerverifiedShow Answer

A Y-shaped protein that is produced in response to a specific antigen and recognizes these antigens is:

Correct AnswerverifiedShow Answer

A disease causing agent that does not usually infect and cause disease in a person with a healthy immune system is termed a(an) :

Correct AnswerverifiedShow Answer

The "master cells" of the immune system that initiate and coordinate the adaptive immune response are:

Correct AnswerverifiedShow Answer

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If a human fetus is _ and the pregnant woman is ____,an incompatibility that destroys the red blood cells of the fetus may occur.

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