Defending against infection

imunnity, viruses, bacteria e.t.c

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  • Created by: paige
  • Created on: 08-06-12 10:46

Pathogens

A pathogen is a disease-causing microorganism.

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Problems with Bacteria

The problem with bacteria is that they produce toxins.

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Problems with Viruses

The problem with viruses is that they damage the hose cell when they reproduce.

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Function of White blood cells

a white blood cell ingests and destroys pathogens

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antibodies

a function of an antibody is to lock on to antigens.

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passive immunity

passive immunity involves receiving antibodies.

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antibiotics

antibiotics can stop bacteria from reproducing.

it is important to use antibiotics carefully because it reduces the spread of resistant strains.

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Vaccinations

a vaccination is an inactive form of the pathogen injected to stimulate immunity.

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