11.2.3

Immunity

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Active and Passive Immunity

Immunity can be provided in an active or a passive way. Active and passive immunity can also be artificial or natural. The different types of immunity are:

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Active immunity

  • Active immunity is where the immune system has created its own antibodies.
  • Active immunity can be:
    • Natural (antibodies have been created in response to catching a disease).
    • Artificial (antibodies have been created in response to vaccination of antigens).
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Passive immunity

  • Passive immunity is where an individual receives antibodies from an external source. The antibodies are not made by the individual.
  • Passive immunity can be:
    • Natural (antibodies are transferred to a baby from its mother in breast milk).
    • Artificial (antibodies are transferred to an individual by injection).

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1Cell Structure

2Biological Molecules

3Enzymes

4Cell Membranes & Transport

5The Mitotic Cell Cycle

6Nucleic Acids & Protein Synthesis

7Transport in Plants

8Transport in Mammals

9Gas Exchange

10Infectious Diseases

11Immunity

12Energy & Respiration (A2 Only)

13Photosynthesis (A2 Only)

14Homeostasis (A2 Only)

15Control & Coordination (A2 Only)

16Inherited Change (A2 Only)

17Selection & Evolution (A2 Only)

18Classification & Conservation (A2 Only)

19Genetic Technology (A2 Only)

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