(Chapter 6) Infection and Response

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What is meant by a communicable disease?
A disease that can be transmitted between organisms.
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What are the four main types of disease? Give examples.
Viruses (measles), bacteria (salmonella), fungi (rose black spots) and protists (malaria(
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How can different pathogens be spread?
Through the air, through dirty water, by direct physical contact, through contaminated food and also passed by another animal.
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Why is it impossible to kill a virus?
Because thet aren't alive in the first place.
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What are some examples of viral diseases in humans? Bacterial? Fungal? Protist?
Measles and HIV/AIDS. Salmonella and gonorrhoea. Athlete's foot. Malaria.
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What is the first human line of defence against pathogens?
Skin, lysozymes in tear and saliva, stomach acids and hairs/cilia/
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What is the second line of human defence against pathogens?
Phagocytes- These engulf pathogens as well as any dead/dying cells. When it comes into contact with a pathogen, it binds with it and absorbs it into a vacuole in its cytoplasm where enzymes are added. This is called phagocytosis.
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What is the third (and final) line of human defence against pathogens?
Lymphocytes- Recognise pathogen and release antibdy. It remembers the antibody used so stops the pathogen much better in futue. Also, antitoxins.
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What is a vaccine?
Amedicine containiong an antigen from a pathogeen that triggers a low level immune responcse so that subsequent infection is dealt with by the body's own immune system. It has a small amount of a dead pathogen so the body learns it.
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At what rate are antibodies produced after a vaccination?
.
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What are antibiotics?
A group of medicines which kill bacteria and fungi.
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What are painkillers?
Drugs that relieve pain.
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Card 2

Front

What are the four main types of disease? Give examples.

Back

Viruses (measles), bacteria (salmonella), fungi (rose black spots) and protists (malaria(

Card 3

Front

How can different pathogens be spread?

Back

Preview of the front of card 3

Card 4

Front

Why is it impossible to kill a virus?

Back

Preview of the front of card 4

Card 5

Front

What are some examples of viral diseases in humans? Bacterial? Fungal? Protist?

Back

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