Exam 15: Adaptive, Specific Immunity and Immunization

Describe the major histocompatability complex with regard to its: a) location, b) composition, c) relationship to specific cell markers, and d) role in regulation of immune reactions.

The molecular fragment on an antigen molecule that a lymphocyte recognizes and responds to is called a/an

Scientists are currently developing bananas that synthesize proteins from pathogens, as a delivery system to vaccinate populations that otherwise would not have access to them.

The most significant cells in graft rejection are

Which process involves a more rapid synthesis and greatly increased titer of antibody when the immune system is subsequently exposed to the same antigen?

Antigens that elicit allergic reactions are called _____.

The bone marrow is where

Plasma cells

Describe the characteristics that distinguish the following: a) antigen, b) hapten, c) antigenic determinant, d) alloantigen, e) heterophilic antigen, and f) autoantigen.

Lymphocytes A.possess MHC antigens for recognizing self.

Human B lymphocytes mature in an intestinal region called the bursa.

Which are the first to attack cancer cells and virus-infected cells?

Toxoids

Discuss, in detail, all the genetic and cellular events encompassed in the clonal selection theory of lymphocyte development.

Each genetically distinct group of lymphocytes that possesses the same specificity is called a _____.

The immunoglobulin/s found on the surface of B cells is/are

Monoclonal antibodies

The immunoglobulin class that has an Fc region that binds to receptors on basophils and mast cells is

After secreting antibodies during an immune response, plasma cells then differentiate into memory cells.

Sam works in construction and stepped on a sharp nail.He can't remember the last time he had a tetanus shot.What type of immunity is the most important for him to receive?