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U2L09
AP Biology B
| Question | Answer |
|---|---|
| A host protein that functions in antigen presentation. Foreign MHC molecules on transplanted tissue can trigger T cell responses that may lead to rejection of the transplant. | Major histocompatibility complex (MHC) molecule |
| The process by which an MHC molecule binds to a fragment of an intracellular protein antigen and carries it to the cell surface, where it is displayed and can be recognized by a T cell. | Antigen presentation |
| A type of lymphocyte that, when activated, kills infected cells as well as certain cancer cells and transplanted cells. | Cytotoxic T cells |
| A type of T cell that, when activated, secretes cytokines that promote the response of B cells (humoral response) and cytotoxic T cells (cell-mediated response) to antigens. | Helper T cells |
| The initial adaptive immune response to an antigen, which appears after a lag of about 10 to 17 days. | Primary immune response |
| The antibody-secreting effector cell of humoral immunity. Plasma cells arise from antigen-stimulated B cells. | Plasma cells |
| The branch of adaptive immunity that involves the activation of B cells and that leads to the production of antibodies, which defend against bacteria and viruses in body fluids. | Humoral immune response |
| The branch of adaptive immunity that involves the activation of cytotoxic T cells, which defend against infected cells. | Cell-mediated immune response |
| Any of a preparation of antibodies that have been produced by a single clone of cultured cells and thus are all specific for the same epitope. | Monoclonal antibodies |
| Long-lasting immunity conferred by the action of B cells and T cells and the resulting B and T memory cells specific for a pathogen. Active immunity can develop as a result of natural infection or immunization. | Active immunity |
| Short-term immunity conferred by the transfer of antibodies, as occurs in the transfer of maternal antibodies to a fetus or nursing infant | Passive immunity |
| An antigen that triggers an exaggerated immune response. | Allergens |
| A disorder in which the ability of an immune system to protect against pathogens is defective or absent | Immunodeficiency |
| An animal body's system of defenses against agents that cause disease. | Immune system |
| One of the two types of polypeptide chains that make up an antibody molecule and B cell receptor; consists of a variable region, which contributes to the antigen-binding site, and a constant region. | Heavy chains |
| One of the two types of polypeptide chains that make up an antibody molecule and B cell receptor; consists of a variable region, which contributes to the antigen-binding site, and a constant region. | Light chains |
Created by:
jtaylor422
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