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Specific Defense
Defense Mechanisms
Question | Answer |
---|---|
What is the definition of Specific Defenses? | Those that recognize self from non-self cells |
What is the definition of Immune Mechanisms? | the RECOGNITION and DESTRUCTION of foreign molecules by Cellular or Chemical means |
List 3 characteristics of Antigens. | 1. Specific Proteins on all cells surfaces; 2. determine cell Identity; 3. trigger Immune Responses |
What is meant by "Identity" with regard to Antigens? | 2 people Antigens are exactly the same, but the profile of Antigens varies from person to person |
What is the definition of Antibodies? | Plasma Proteins (immunoglobulins: Ig) synthesized to combine with specific Antigens |
What is meant by "Identity" with regard to Antibodies? | profile varies from Protein to Protein |
What is the function of Antibodies? | cause CLUMPING of cells bearing foreign Antigens |
What are the major classes of Antibodies? | IgG (Gamma Globulin), IgM |
Ho do Antibodies know which Antigens are foreign? | recognition of "self" and "foreign" Antigens is established BEFORE BIRTH |
What is the term used for Antibodies when functional? | Immunocompetence |
What are the terms used for Antibodies when dysfunctional? | Immunodeficiency, Autoimmunity |