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Download 19.2 Animal-like Protists
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19.2 Animal-like Protists KEY CONCEPT Animal-like protists are single-celled heterotrophs that can move. 19.2 Animal-like Protists Animal-like protists move in various ways. • often called protozoa. macronucleus contractile vacuole food vacuole oral groove micronucleus cilia 19.2 Animal-like Protists • Protozoa with flagella are zooflagellates. – flagella help zooflagellates swim – more than 2000 zooflagellates 19.2 Animal-like Protists • Some protists move with pseudopods. – change shape as they move – amoebas 19.2 Animal-like Protists – foraminifera 19.2 Animal-like Protists • Some protozoa move with cilia. – cilia help protists swim and capture food – more than 8000 ciliates macronucleus contractile vacuole food vacuole oral groove micronucleus cilia 19.2 Animal-like Protists Some animal-like protists cause disease. • Protists cause infectious human liver diseases. • Malaria is caused by Plasmodium and spread by mosquitoes. • Sleeping sickness is caused by Trypanosoma and spread by flies. • A giardia infection is caused by Giardia and spread through water. sporozoites liver cells developed parasites red blood cells Malaria Infection
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