Understanding Organisms

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What are pathogens?
Pathogens are disease causing organisms, they produce the symptoms of an infectious disease by damaging the body's cells or producing poisonous waste products called toxins.
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What are antibodies?
Antibodies are produced by the body to protect himself, antibodies lock into antigens on the surface of pathogens such as bacterium. This kills the pathogen.
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What do white blood cells do?
White blood cells produce antibodies, resulting in active immunity. This can be a slow process but it has a long-lasting effect.
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What is a vaccination?
It starts with injecting a harmless pathogen carrying antigens. The antigens trigger a response by white blood cells, producing the correct antibodies. Memory cells remain in the body, providing long-lasting immunity to that disease.
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Is immunisation a good thing?
Immunisation carries a small risk to the individual, but it avoids the potentially lethal effect of the pathogen, as well as decreasing the risk of spreading the disease?
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Other cards in this set

Card 2

Front

What are antibodies?

Back

Antibodies are produced by the body to protect himself, antibodies lock into antigens on the surface of pathogens such as bacterium. This kills the pathogen.

Card 3

Front

What do white blood cells do?

Back

Preview of the front of card 3

Card 4

Front

What is a vaccination?

Back

Preview of the front of card 4

Card 5

Front

Is immunisation a good thing?

Back

Preview of the front of card 5

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