Chapter 8

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What is a pathogen?
A microorganism which causes diseases
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List FOUR ways you can protect yourself or others against infections
Use a tissue while coughing and sneezing or prevent contact with an infected person or treat by drinking lots of fluids or cook food thoroughly or wash hands thoroughly
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Why is it difficult to produce medicines to destroy viruses?
Viruses reproduce inside the cells. Medicines would damage the cells as well as the virus
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What changes in a pathogen when it mutates?
Genetic material/DNA
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Some mutated pathogens are dangerous, why?
If they cause disease and there is no antibiotic/vaccine to treat them
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What is the difference between an antibiotic and an antiseptic?
Antibiotics kill pathogens inside the body. Antiseptics are used to kill pathogens in the environment
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What is contained in a vaccine?
Dead or inactive pathogens
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Explain how a person develops immunity following vaccination?
The vaccine enter the blood. White blood cells produce antibodies to destroy the specific pathogen. If the person is infected with this pathogen at a future date, the white blood cells produce antibodies more quickly to destroy the pathogen
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Other cards in this set

Card 2

Front

List FOUR ways you can protect yourself or others against infections

Back

Use a tissue while coughing and sneezing or prevent contact with an infected person or treat by drinking lots of fluids or cook food thoroughly or wash hands thoroughly

Card 3

Front

Why is it difficult to produce medicines to destroy viruses?

Back

Preview of the front of card 3

Card 4

Front

What changes in a pathogen when it mutates?

Back

Preview of the front of card 4

Card 5

Front

Some mutated pathogens are dangerous, why?

Back

Preview of the front of card 5
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