AQA · Biology · 8461
GCSE Biology: Protist diseases
Infection and response · AQA GCSE Biology (8461), specification point 4.3.1.5. Cards are generated from the exam board's own specification for "Protist diseases", and every card links back to the page it came from. Specification © AQA — used with attribution.
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What type of pathogen causes malaria?
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A protist.
Which organism is the vector for malaria?
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The mosquito — the malarial protist's life cycle includes the mosquito, which transmits it when it bites.
What is the main symptom of malaria?
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Recurrent episodes of fever.
Can malaria be fatal?
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Yes — malaria causes recurrent fever and can be fatal.
Name one way the spread of malaria is controlled.
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Preventing mosquitoes (the vectors) from breeding, or using mosquito nets to avoid being bitten.
How do mosquito nets help control the spread of malaria?
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They stop people being bitten by mosquitoes, so the protist cannot be passed on.
Why does preventing mosquitoes from breeding reduce malaria?
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Mosquitoes are the vector that transmits the malarial protist, so fewer mosquitoes means fewer bites and less spread.
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