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Protist Diseases | Biology for Grade 10 PDF Download

Protists: Basics

  • Protists are a diverse group of eukaryotic and usually unicellular organisms
  • Only a small number of protists are pathogenic, but the diseases they cause are often serious
  • Often need a vector to transfer from one host to the next

Malaria

  • The pathogens that cause malaria are protists from the Plasmodium family (four species); they have a complex life cycle but can infect red blood cells in humans
  • The malarial protist has a life cycle that includes the mosquito as a vector
  • Malaria causes recurrent episodes of fever and can be fatal in certain instances
  • The spread of malaria is controlled by preventing the vectors, mosquitos, from breeding and by using mosquito nets to avoid being bitten
    Part of the malaria life cycle is in humans and the other part is in mosquitos
    Part of the malaria life cycle is in humans and the other part is in mosquitos

Malaria table

Protist Diseases | Biology for Grade 10

Exam Tip

Know the symptoms and how the pathogen causing each disease is spread. Typically, this topic appears as data analysis questions in the exam where you may be given a graph to analyse and interpret.

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