chap 7 immunity Flashcards
Which of the following best describes foreign or nonself substances? Immunoglobulins Lymphocytes Antibodies Antigens
Antigens
Which of the following is a TRUE statement regarding the immune response in humans?
Before birth there is no production of lymphocytes.
B lymphocytes come from the thymus.
The thymus releases mature lymphocytes.
Generation of clonal diversity occurs in primary lymphoid organs.
Generation of clonal diversity occurs in primary lymphoid organs
Which of the following is a description of the cells and their functions in the humoral arm of the immune system?
Cells undergo differentiation and develop into subpopulations.
Cells attack cancerous cells.
Antibodies are primarily responsible for protection.
Is also called cellular immunity.
Antibodies are primarily responsible for protection
Which of the following terms describes the type of immunity that occurs when preformed antibodies are transferred from donor to recipient? Passive immunity Active immunity Memory immunity Cellular immunity
Passive immunity
Which of the following best describes the precise portion of the antigen that is configured for recognition and binding of an antibody? Paratope Epitope Self-antigen Immunogen
Epitope
Which of the following is NOT a criterion that influences the degree of immunogenicity? Foreignness to the host Appropriate size Appropriate quantity Simple chemical complexity
Simple chemical complexity
Which of the following best describes an antigen that is too small to initiate an immune response? Carrier Allergen Hapten Self-antigen
Hapten
Which of the following is NOT one of the five molecular classes of immunoglobulins? IgG IgN IgM IgE
IgN
Which of the following is TRUE regarding IgA antibodies?
IgA-2 is predominantly found in blood.
IgA-1 is predominantly found in the body’s secretions.
The J chain anchors together the IgA molecules.
The gamma heavy chain is predominant
The J chain anchors together the IgA molecules
Which of the following is the function of the cytotoxic T lymphocyte?
Activation of macrophages
Direct stimulation of B-cell maturation
Isotype switching
Direct killing of foreign and abnormal cell
Direct killing of foreign and abnormal cells
Which of the following best describes inactivation or blocking of the binding of the antigen to the receptor? Agglutination Precipitation Neutralization Attenuation
Neutralization
Which of the following is a correct description of IgE?
It is designed to protect the host from large viruses.
It is the primary cause of common allergies.
This is the only inflammatory cell that can damage a virus.
It is designed specifically to prevent the invasion and attachment of pathogens through mucous membranes.
It is the primary cause of common allergies
Which of the following is accurate in describing the humoral response?
The B-cell population can respond to only a certain number of antigens.
B cells become activated on recognition of an antigen.
Clonal diversity is generated by the foreignness of the antigen.
Immunoglobulins are composed of six polypeptide changes.
B cells become activated on recognition of an antigen
Which of the following is a TRUE statement regarding fetal and neonatal immune function?
The primary immune system is adequate.
The secondary immune system is adequate.
The immune response does not fully develop until 6 years of age.
Maternal antibodies are catabolized fully by 10 weeks of age.
The secondary immune system is adequate
Which of the following is a TRUE statement regarding aging and the immune system function?
Older adults have decreased circulating antibodies.
T-cell function is increased.
B-cell production is inferior.
Response to infection is more rapid.
B-cell production is inferior
