Question 1

CD4 is a characteristic surface marker and a result of which of the following? (Select all that apply.)

Accepted Answer

A)  Activity in the primary lymphoid organs 
B)  Process of cellular differentiation 
C)  Alterations to T cells 
D)  Changes to B cells 
E)  Clonal selection 
A)  Activity in the primary lymphoid organs 
B)  Process of cellular differentiation 
C)  Alterations to T cells 
D)  Changes to B cells 
E)  Clonal selection A,B,C,D

Question 2

Which is an example of an endogenous antigen?

Accepted Answer

A)  Yeast 
B)  Cancer cells 
C)  Bacteria 
D)  Fungus 
A)  Yeast 
B)  Cancer cells 
C)  Bacteria 
D)  Fungus B

Question 3

The functions of the major histocompatibility complex (MHC)and CD1 molecules are alike because both:

Accepted Answer

A)  Are antigen-presenting molecules. 
B)  Bind antigens to antibodies. 
C)  Secrete interleukins during the immune process. 
D)  Are capable of activating cytotoxic T lymphocytes. 
A)  Are antigen-presenting molecules. 
B)  Bind antigens to antibodies. 
C)  Secrete interleukins during the immune process. 
D)  Are capable of activating cytotoxic T lymphocytes. A

Question 4

Which T cell controls or limits the immune response to protect the host's own tissues against an autoimmune response?

Accepted Answer

A)  Cytotoxic T cells 
B)  Th1 cells 
C)  Th2 cells 
D)  Regulatory T (Treg) cells 
A)  Cytotoxic T cells 
B)  Th1 cells 
C)  Th2 cells 
D)  Regulatory T (Treg) cells

Question 5

Which statement is believed to be true concerning Th1 cells?

Accepted Answer

A)  Th1 cells are induced by antigens derived from allergens. 
B)  They are induced by antigens derived from cancer cells. 
C)  Th1 cells produce IL-4, IL-5, IL-6, and IL-13. 
D)  They assist in the development of humoral immunity. 
A)  Th1 cells are induced by antigens derived from allergens. 
B)  They are induced by antigens derived from cancer cells. 
C)  Th1 cells produce IL-4, IL-5, IL-6, and IL-13. 
D)  They assist in the development of humoral immunity.

Question 6

Th2 cells produce IL-4 and suppress which cells?

Accepted Answer

A)  B lymphocytes 
B)  Cytotoxic T lymphocytes 
C)  Th1 cells 
D)  Memory T lymphocytes 
A)  B lymphocytes 
B)  Cytotoxic T lymphocytes 
C)  Th1 cells 
D)  Memory T lymphocytes

Question 7

Which statement is true concerning the IgM?

Accepted Answer

A)  IgM is the first antibody produced during the initial response to an antigen. 
B)  IgM mediates many common allergic responses. 
C)  IgM is the most abundant class of immunoglobulins. 
D)  IgM is capable of crossing the human placenta. 
A)  IgM is the first antibody produced during the initial response to an antigen. 
B)  IgM mediates many common allergic responses. 
C)  IgM is the most abundant class of immunoglobulins. 
D)  IgM is capable of crossing the human placenta.

Question 8

Which cell has the ability to recognize antigens presented by the MHC class I molecules?

Accepted Answer

A)  T cytotoxic 
B)  CD 4 
C)  CD 8 
D)  T helper 
A)  T cytotoxic 
B)  CD 4 
C)  CD 8 
D)  T helper

Question 9

Which statement is true regarding maternal antibodies provided to the neonate?

Accepted Answer

A)  The antibodies enter into the fetal circulation by means of active transport. 
B)  The antibodies are transferred to the fetus via the lymphatic system. 
C)  The antibodies are directly related to the mother's nutritional intake. 
D)  The antibodies reach protective levels after approximately 6 months of age. 
A)  The antibodies enter into the fetal circulation by means of active transport. 
B)  The antibodies are transferred to the fetus via the lymphatic system. 
C)  The antibodies are directly related to the mother's nutritional intake. 
D)  The antibodies reach protective levels after approximately 6 months of age.

Question 10

Match each immunoglobulin with its characteristic or function.Each immunoglobulin can be used only once.
-Mediates many common allergic responses

Accepted Answer

A) IgA 
B) IgE 
C) IgG 
A) IgA 
B) IgE 
C) IgG

Question 11

When a person is exposed to most antigens,antibodies can be usually detected in his or her circulation within:

Accepted Answer

A)  12 hours 
B)  24 hours 
C)  3 days 
D)  6 days 
A)  12 hours 
B)  24 hours 
C)  3 days 
D)  6 days

Question 12

Which immunoglobulin is present in blood,saliva,breast milk,and respiratory secretions?

Accepted Answer

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

Question 13

Which cytokine is needed for the maturation of a functional helper T cell?

Accepted Answer

A)  IL-1 
B)  IL-2 
C)  IL-4 
D)  IL-12 
A)  IL-1 
B)  IL-2 
C)  IL-4 
D)  IL-12

Question 14

Which statement is true concerning clonal selection?

Accepted Answer

A)  Clonal selection is driven by hormones and does not require foreign antigens. 
B)  This theory involves antigens that select those lymphocytes with compatible receptors. 
C)  Clonal selection takes place in the primary (central) lymphoid organs. 
D)  This process generates immature but immunocompetent T and B cells with receptors. 
A)  Clonal selection is driven by hormones and does not require foreign antigens. 
B)  This theory involves antigens that select those lymphocytes with compatible receptors. 
C)  Clonal selection takes place in the primary (central) lymphoid organs. 
D)  This process generates immature but immunocompetent T and B cells with receptors.

Question 15

The portion of the antigen that is configured for recognition and binding is referred to as what type of determinant?

Accepted Answer

A)  Immunotope 
B)  Paratope 
C)  Epitope 
D)  Antigenitope 
A)  Immunotope 
B)  Paratope 
C)  Epitope 
D)  Antigenitope

Question 16

Which primary characteristic is unique for the immune response?

Accepted Answer

A)  The immune response is similar each time it is activated. 
B)  The immune response is specific to the antigen that initiates it. 
C)  The response to a specific pathogen is short term. 
D)  The response is innate, rather than acquired. 
A)  The immune response is similar each time it is activated. 
B)  The immune response is specific to the antigen that initiates it. 
C)  The response to a specific pathogen is short term. 
D)  The response is innate, rather than acquired.

Question 17

How does the aging process of the T-cell activity affect older adults?

Accepted Answer

A)  Poor heat regulation abilities 
B)  Increased risk for bone fractures 
C)  Tendency to develop various infections 
D)  Likelihood of experiencing benign skin lesions 
A)  Poor heat regulation abilities 
B)  Increased risk for bone fractures 
C)  Tendency to develop various infections 
D)  Likelihood of experiencing benign skin lesions

Question 18

Why is the herpes virus inaccessible to antibodies after the initial infection?

Accepted Answer

A)  The virus does not circulate in the blood. 
B)  It does not have antibody receptors. 
C)  It resists agglutination. 
D)  The virus is a soluble antigen. 
A)  The virus does not circulate in the blood. 
B)  It does not have antibody receptors. 
C)  It resists agglutination. 
D)  The virus is a soluble antigen.

Question 19

Which statements are true concerning the humoral immune response? (Select all that apply.)

Accepted Answer

A)  The humoral immune response is divided into major and minor phases. 
B)  The response has IgG and IgM produced during each of its phrases. 
C)  It has a greater presence of IgG than IgM in one of its phases. 
D)  The humoral immune response is produced in reaction to the presence of an antigen. 
E)  Phases differ in their response time as a result of the effect of memory cells. 
A)  The humoral immune response is divided into major and minor phases. 
B)  The response has IgG and IgM produced during each of its phrases. 
C)  It has a greater presence of IgG than IgM in one of its phases. 
D)  The humoral immune response is produced in reaction to the presence of an antigen. 
E)  Phases differ in their response time as a result of the effect of memory cells.

Question 20

Antibodies that are associated with mucosal immune system,such as immunoglobulins,function to prevent which type of infections?

Accepted Answer

A)  Infections that attack the respiratory system 
B)  Infections that tend to be chronic in nature 
C)  Infections likely to be resistant to antibiotics 
D)  Infections that focus on epithelial surfaces of the body 
A)  Infections that attack the respiratory system 
B)  Infections that tend to be chronic in nature 
C)  Infections likely to be resistant to antibiotics 
D)  Infections that focus on epithelial surfaces of the body

Exam 8: Adaptive Immunity

CD4 is a characteristic surface marker and a result of which of the following? (Select all that apply.)

Which is an example of an endogenous antigen?

The functions of the major histocompatibility complex (MHC)and CD1 molecules are alike because both:

Which T cell controls or limits the immune response to protect the host's own tissues against an autoimmune response?

Which statement is believed to be true concerning Th1 cells?

Th2 cells produce IL-4 and suppress which cells?

Which statement is true concerning the IgM?

Which cell has the ability to recognize antigens presented by the MHC class I molecules?

Which statement is true regarding maternal antibodies provided to the neonate?

Match each immunoglobulin with its characteristic or function.Each immunoglobulin can be used only once. -Mediates many common allergic responses

When a person is exposed to most antigens,antibodies can be usually detected in his or her circulation within:

Which immunoglobulin is present in blood,saliva,breast milk,and respiratory secretions?

Which cytokine is needed for the maturation of a functional helper T cell?

Which statement is true concerning clonal selection?

The portion of the antigen that is configured for recognition and binding is referred to as what type of determinant?

Which primary characteristic is unique for the immune response?

How does the aging process of the T-cell activity affect older adults?

Why is the herpes virus inaccessible to antibodies after the initial infection?

Which statements are true concerning the humoral immune response? (Select all that apply.)

Antibodies that are associated with mucosal immune system,such as immunoglobulins,function to prevent which type of infections?

Cellular Biology

Altered Cellular and Tissue Biology

The Cellular Environment: Fluids and Electrolytes, Acids and Bases

Genes and Genetic Diseases

Genes, Environment-Lifestyle, and Common Diseases

Epigenetics and Disease

Innate Immunity: Inflammation

Alterations in Immunity and Inflammation

Infection

Stress and Disease

Cancer Biology

Cancer Epidemiology

Cancer in Children

Structure and Function of the Neurologic System

Pain, Temperature Regulation, Sleep, and Sensory Function

Alterations in Cognitive Systems,Cerebral Hemodynamics,and Motor Function

Disorders of the Central and Peripheral Nervous Systems and the Neuromuscular Junction

Neurobiology of Schizophrenia, Mood Disorders, and Anxiety Disorders

Alterations of Neurologic Function in Children

Mechanisms of Hormonal Regulation

Alterations of Hormonal Regulation

Structure and Function of the Reproductive Systems

Alterations of the Female Reproductive System

Alterations of the Male Reproductive System

Sexually Transmitted Infections

Structure and Function of the Hematologic System

Alterations of Erythrocyte Function

Alterations of Leukocyte, Lymphoid, and Hemostatic Function

Alterations of Hematologic Function in Children

Structure and Function of the Cardiovascular and Lymphatic Systems

Alterations of Cardiovascular Function

Alterations of Cardiovascular Function in Children

Structure and Function of the Pulmonary System

Alterations of Pulmonary Function

Alterations of Pulmonary Function in Children

Structure and Function of the Renal and Urologic Systems

Alterations of Renal and Urinary Tract Function

Alterations of Renal and Urinary Tract Function in Children

Structure and Function of the Digestive System

Alterations of Digestive Function

Alterations of Digestive Function in Children

Structure and Function of the Musculoskeletal System

Alterations of Musculoskeletal Function

Alterations of Musculoskeletal Function in Children

Structure, Function, and Disorders of the Integument

Alterations of the Integument in Children

Shock, Multiple Organ Dysfunction Syndrome, and Burns in Adults

Shock, Multiple Organ Dysfunction Syndrome, and Burns in Children

Filters