Kingdom: Protista A MIXED UP KINGDOM This kingdom is the most diverse group of organisms.
They move like animals Photosynthesize like plants Produce spores like fungus What is a Protist? Protists live in almost any environment
that contains water. Many protists, such as the algae, are photosynthetic and are vital primary producers in ecosystems, particularly in the ocean----plankton. What is a Protist?
Eukaryotic Unicellular or multicellular Heterotroph or autotroph Some have cell walls Chapter 19, page 502
Pretzel slime mold (pg 502) Move with one or more flagella
Pa Paramecium Euglena
Movement & Support Pseudopods Cilia Flagella Some have cell walls Shells of silica and
calcium carbonate Some algae have holdfasts (root) and air bladders (buoyancy) Pellicle a thin layer supporting the cell membrane Digestion/Obtaining Nutrients
Heterotroph Endocytosis Diffusion Decomposers Oral groove, cilia, gullet, food vacuoles (pg 507) Autotrophs with pigments and chloroplasts
Nervous/Response Nucleus (macro and micro) Formation of cysts Eye spot for light detection Bioluminescent
Produce toxins EUGLENA Circulation Flow of cytoplasm
Gas Exchange Diffusion Excretion Diffusion
Contractile vacuole Anal pore Reproduction Sexual gametes Asexual binary fission
Conjugation Spores Fragmentation Alternation of generations Helpful Protists
Algae (photosynthesis) Diatoms (a group of algae
called phytoplankton.) Harmful Protists Entamoeba histolytica http://www.cdc.gov/parasites/amebiasis/
Giardia lamblia http://www.cdc.gov/parasites/giardia/ Trichonympha-termites Trypanosomes-( many species, one causes sleeping
sickness carried by tsetse fly) http://www.cdc.gov/parasites/sleepingsickness/biology.html trypanosome infecting RBCs
Gonyaulaux catanella (A marine dinoflagellate protozoan that produces a powerful toxin that accumulates in the tissues of mussels and shellfish; it may cause fatal poisoning in humans who have eaten contaminated shellfish.) Phytophtora infestans
(caused European potato famine of 1840s) Malaria Plasmodium http://www.cdc.gov/Malaria/
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