AoS 2: Detecting and Responding

Course Outline

  • Coordination and regulation
    • Stability and change in the internal environment
    • Principles of homeostasis: stimulus-response model and negative feedback model; roles of nervous and endocrine systems
    • Signalling molecules: neurotransmitters, hormones, pheromones; plant growth regulators
    • Signal transduction: signals, membrane receptors; responses
  • Detecting 'self' and 'non-self' molecules: antigens and membrane receptors
    • Pathogens: non-cellular agents, cellular agents; controls
  • Physical and chemical barriers to infection in plants and animals
  • Immune response
    • Structure and overall function of the lymphatic system
    • Non-specific: inflammatory response, phagocytosis, blood clotting
    • Specific immune response: T cell lymphocytes and cell-mediated response; B cell lymphocytes and humoral response; antigens and antibodies; memory cells
  • Disorders of the immune response: autoimmunity; hypersensitivity; allergens and allergic responses
  • Acquired immunity: natural, artificial; including vaccines and antibody serums

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