Question
click below
click below
Question
Normal Size Small Size show me how
Mico#13
Question | Answer |
---|---|
What are an antigens? | An antigen is any agent that can bind specifically to components of the immune system. Proteins, carbohydrates, lipids, and nucleic acids can all be antigens under certain circumstances. |
what are the smallest part of an antigen molecule capable to bind with an antibody. | Epitopes |
Self-antigens are coded by a group of genes located on chromosome ____ and form the MHC (major histocompatibility complex). | six |
An antibody is | a protein produced by plasma cells. |
The antibody found in body secretions is | IgA |
Which of the following cell types secretes antibodies? | Plasma cells |
Which of the following provide defense against viral infections? | Interferons |
Which of the following cells is a granulocyte | Basophil |
Immunity that is a result of an actual infection is called | naturally acquired active immunity |
A substance capable of raising the body temperature is | pyrogen |
When an organ or tissue is transplanted between genetically different individuals it is called | allograft |
Which of the following blood types cannot receive a blood transfusion from type O blood type? | All blood types can |
Which of the following is a systemic autoimmune disease? | Rheumatoid arthritis |
What are parts of the second line of defense? | Cytokines, Phagocytosis, Fever |
Cells infected with a virus produce glycoproteins that interfere with viral replication and impede its spread; these glycoproteins are called | interferons. |
The first line of defense that prevents microbes from entering the body includes | skin |
T cells (T lymphocytes) are divided into four categories | Killer T cells, helper T cells, suppressor T cells, memory T cells |
a pentamer and the largest of the immunoglobulins is | IgM |
The category of immunoglobulins that can also be found in colostrum and mother’s milk is | IgA |
GALT is an example of a collection of lymphatic nodules in the | small intestine |
Which of the following organs breaks down worn-out red blood cells? | spleen |
Enzymes that attack the peptidoglycan layer of bacteria and are present in perspiration, nasal secretions, saliva, and tears are __________. lysozyme | lysozyme |
Delayed hypersensitivity is a result of | cell-mediated immune reaction |
B cells are responsible for __________-mediated immunity | antibodies |
Substances that stimulate the production of antibodies are called | immunogens |
The category of immunoglobulins that is implicated in allergic reactions is | IgE |
The body’s decreased ability to fight infections is called __________. | immunosuppression |
Granulocytes are subdivided into three groups | basophils, eosinophils, neutrophils |
Large, circulating phagocytic agranulocytes that develop into macrophages as they leave the blood vessels are called __________. | monocytes |
A(n) __________ is a strong immune response to a substance that is usually not harmful to the body but causes hypersensitivity reactions. | allergy |
what occurs when the immune system is unable to distinguish between self- and nonself-antigens and attacks the cells of the body | Autoimmunity |
Monomer bound to surface of B cells | IgD |
Pentamer | this is the IgM |
Found in tears, saliva | this is the IgA |
Can cross the placenta | this is IgG |
Allergic reactions | this is IgE |