B1C

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  • Created by: ellxe
  • Created on: 09-04-16 15:54
What are the four types of micro-organisms that cause disease?
Fungi, Bacteria, Virus, Protozoa
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How is malaria caused?
By a protozoan (a parasite). It is carried by mosquitoes (vectors)
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How do you target mosquitoes to reduce the spread of infection?
Areas where mosquitoes lay their eggs can be drained or sprayed with insecticides. Fish can be introduced to the water to eat mosquito larvae. People can be protected from them using insecticides and mosquito nets.
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How does your immune system deal with pathogens?
1) white blood cells engulf foregin cells 2) antitoxins counter the effect of any poisons 3) it produces antibodies
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How does immunisation stop you from getting infections?
you are injected with a dead or inactive pathogen. They carry antibodies so even though they are harmless they still trigger a response. Some WBC's then remain as memory cells for if you ever get infected with the disease.
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What is active immunity?
Where the immune system makes its own antibodies after being stimulated by a pathogen. It is usually permanent.
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What is passive immunity?
Where you use antibodies made by another organism (e.g. from mother through breast milk). It is only temporary
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What are the benefits of immunisation?
It stops you from getting ill, it won't spread as easily,.
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What are the risks associated with immunisation?
There can be short term side effects, you can't have some if you're already ill, it may cause other disorders (but scientists now know it is safe)
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What are antibiotics?
They kill bacteria without damaging your body cells. However, they don't kill viruses. They can also cause resilient strains of bacteria (e.g. MRSA) if you take too much or don't finish a course.
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Other cards in this set

Card 2

Front

How is malaria caused?

Back

By a protozoan (a parasite). It is carried by mosquitoes (vectors)

Card 3

Front

How do you target mosquitoes to reduce the spread of infection?

Back

Preview of the front of card 3

Card 4

Front

How does your immune system deal with pathogens?

Back

Preview of the front of card 4

Card 5

Front

How does immunisation stop you from getting infections?

Back

Preview of the front of card 5
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