Chapter 43-44 diagrams

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DesLee26
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Chapter 43-44 diagrams
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2011-03-29 23:17:36
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AP Bio
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  1. recognition of traits shared by broad ranges of pathogens, sing a small set of receptors
    innate immunity
  2. Rapid response
    innate immunity
  3. Barrier defenses:
    skin
    mucuous membranes
    secretions
    innate im
  4. recognition of traits specific to particular pathogens, using a vast array of receptors
    acquired immunity
  5. slower response
    acquired immunity
  6. Humoral response:
    antibodies defend against infection in body fluids
    acquired
  7. cell-mediated response: cytotoxic lymphocytes defend against infection in body cells
    acquired immunity
  8. small, specific regions on antigens that bind to antigen receptors on lymphocytes and by secreted antibodies
    epitopes
  9. steps of clonal selection
    • 1) anytigen molecule binds to antigen receptors
    • 2) selected B cell or T cell proliferates , forming a clone of identical cells bearing receptors for the antigen
    • 3) Some proliferating cells become memory or effector cells
  10. promotes neutralization and cross-linking of antigens; very effective in complement system
    IgM
  11. Promotes opsonization, neutralization, and crosslinking of antigens; less effective in activation of complement system than IgM
    IgG
  12. Provicdes localized defense of mucous memranes by crosslinking and neutralization of antigens
    IgA
  13. triggers release from mast cells and basophils of histamine and other chems that cause allergic reaction
    IgE
  14. Acts as antigen receptor in the antigen-stimulated proliferation and differentiation of B cells (clonal selection)
    IgD
  15. a disorder in which the ability of an immune system to protect against pathogens is defectie or absent
    immunodeficiency
  16. AN __ results from a genetic or developmental defect in th immune system
    inborn immunodefi.
  17. An __ develops later in life following exposure to chem or biological agents
    acquired immunodef.
  18. regular events for some viruses and parasites that cause changes in epitope expression
    antigenic variation
  19. inactive state of virusesthat remain in host without activating immune defenses, ceasing production of viral productions targeted by lymphocytes
    latency
  20. the excretory tubule collects a flitrate from thebloood. Water and solutes are forced by blood pressure across the selectively permeable membranes of a cluster of capilalaries and into the excretory tubule
    filtration
  21. the transport epithelium reclaims valuable substances from the filtrate and returns them to the body fluids
    reabsorption
  22. other substances like toxins and excess ions are extracted from body fluids and added to teh contents of the excretory tubule
    secretion
  23. the alttered filtrate (urine) leaves the system and body
    excretion

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