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Kingdom Protista

Kingdom Protista. Biology. What does the word Protista mean?. The word protista means “the very first”. General Characteristics of Protists. Most protists are: Microscopic Unicellular (some are multicellular ) Eukaryotic. Habitat – where do they live?. Protists can live in:

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Kingdom Protista

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  1. Kingdom Protista Biology

  2. What does the word Protista mean? • The word protista means “the very first”.

  3. General Characteristics of Protists • Most protists are: • Microscopic • Unicellular (some are multicellular) • Eukaryotic

  4. Habitat – where do they live? Protists can live in: • Fresh water • Salt water • Moist soils • Other moist areas

  5. How do Protists obtain their nutrtion? Protists can be: • Autotrophs – They carry out photosynthesis • Heterotrophs – They ingest other substances.

  6. How do Protists reproduce? • Some protists reproduce asexually by binary fission. • Some protists reproduce sexually using conjugation.

  7. Binary Fission and Conjugation Binary Fission Conjugation

  8. How do some protists move? • Some use a ….. • Flagella • Cilia • Pseudopodia

  9. 3 main groups • Animal –like Protists (Protozoans): • Paramecium and Amoebas • Plant-like Protists: Algae • Fungus-like Protists: Water Molds and Slime Molds

  10. Animal Like Protists • They are similar to animals in the following ways: • No cell walls • No chloroplasts. This makes them heterotrophs • They are different than animals in the following way: • They are unicellular whereas animals are multicellular. • Examples: Paramecium and Amoebas

  11. Paramecium Amoeba

  12. Adaptations of Animal-like Protists • Pseudopodia • “False foot” • An extension of the cytoplasm that aids in movement and capturing of food http://www.youtube.com/watch?v=7pR7TNzJ_pA&feature=related • Contractile Vacuole • Pumps out excess water • Prevents bursting from living in watery environments. http://www.youtube.com/watch?v=4z98WIeNtjM

  13. Plasmodium • Animal like protist that causes malaria Check out this video clip about the lifecycle of the Plasmodium. http://highered.mcgraw-hill.com/olc/dl/120090/bio44.swf

  14. More on Plasmodium • Mosquito bites a person infected with malaria. • The plasmodium enters the mosquito and reproduces in the gut of the mosquito. • Plasmodium enters the mosquito’s salivary glands. • Infects the next person the mosquito bites!!!

  15. Plant Like Protists • They are similar to plant in the following ways: • Have a cell wall • Have chloroplasts, which makes them autotrophs • They are different than plants in the following ways: • They are motile (can move) • Their cell walls are made of chitin, where plant cell walls are made of cellulose • They have no roots, stems or leaves • Examples: Algae and Euglena

  16. Euglena Algae

  17. Fungus Like Protists • They are similar to fungi in the following ways: • Decompose organic material, which makes them heterotrophs. • They are different than fungi in the following ways: • Are motile • Have cell walls made of cellulose, where fungi have cell walls made of chitin. • Examples: Slime molds and water molds

  18. Slime Mold Water Mold

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