ecological roles of protists
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Ecological Roles of Protists. 21.3. http://www.bing.com/images/search?q=algae&qpvt=algae&FORM=IGRE#view=detail&id=1C5F87CADB61E1E2EBCD8CCEE5A76E44A11F45B3&selectedIndex=17. - PowerPoint PPT PresentationTRANSCRIPT
Ecological Roles of Protists21.3
http://www.bing.com/images/search?q=algae&qpvt=algae&FORM=IGRE#view=detail&id=1C5F87CADB61E1E2EBCD8CCEE5A76E44A11F45B3&selectedIndex=17
The position of photosynthetic protists at the base of the food chain makes much of the diversity of aquatic life possible
Roles p. 611 Feeding fish and whales Supporting coral reefs Providing shelter Recycling wastes POPCORN READ!
Heterotrophic protists Amoebas
Capture and digest their food, surrounding a cell or particle and form a FOOD VACUOLE A small cavity in the cytoplasm that
temporarily stores food
Ciliates Paramecium Use cilia to sweep food particles into the
GULLET Indentation in one side of the organism
Slime Molds Thrives on decaying matter Damp and rich in organic matter (forest
floor) Great recyclers What is a plasmodium (glossary)?
Protists that absorb Water molds (grow on dead/ decaying
matter) White fuzz on fish
Mutualists/ Symbiotic Many protists are involved in mutualistic
symbioses; host and they benefit Use p. 614 and write an example like
this in your notes
Parasites and Disease Parasitic protists are responsible for some of
the world’s most deadly diseases, including several kinds of debilitating intestinal diseases, African sleeping sickness and malaria
Read (p. 615-616) about each of the above three diseases and write down their symptoms
Be able to interpret the Plasmodium life cycle on p. 616