Tamil Nadu Board of Secondary EducationHSC Science Class 12

Types of Immunity

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Topics

  • Types of Immunity
  1. Innate immunity or Inborn immunity
    ⇒ Types of Barriers
    a) Physical barriers: Skin, Mucous membrane
    b) Physiological barriers: Acid, Saliva
    c) Cellular barriers: Leukocytes, Natural killer cells, Macrophages
    d) Cytokine barriers: Interferons
  2. Acquired immunity
    ⇒ Structure of antibody
    ⇒ Types of Acquired Immunity
    (i) Active Immunity: Natural acquired active immunity and artificial acquired active immunity
    (ii) Passive immunity: Natural Acquired Passive immunity and Artificially Acquired Passive immunity

Notes

Types of Immunity:

There are two broad classes of immunity responses namely, innate immunity and acquired immunity.

Immune system

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