Protists! Miss Charney Northville Central School

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  • Protists!Miss CharneyNorthville Central School

  • So what are they anyways?Protists - eukaryotes that cannot be classified as animals, plants, and fungi

    They live in moist surroundingsusually water

  • GROUP ONE - ProtozoansParts of a ProtozoanCell Membrane - protects the cell and regulates what comes in and out of the cell

    Nucleus - place where genetic material is stored

    Cytoplasm - liquid found throughout the cell

  • GROUP ONE - ProtozoansParts of a Protozoan cont.Food Vacuole - where food is stored

    Contractile Vacuole - place where extra water is stored

    Pseudopod (Amoeba) - protozoan that moves with a [pseudopod] false foot

  • GROUP ONE - ProtozoansParts of a Protozoan cont.Cilia (Paramecium) - protozoan that moves with cilia (short hair-like structures)

    Oral Groove (Paramecium) - where the food enters

    Anal Groove (Paramecium) - where the food leaves

    Flagella - whip-like structures used in movement

  • Lets go to the drawing board!

  • Differing Types of ProtozoanSarcodines - animal-like protists- protozoans with pseudopods

    Ciliates - move by cilia

    Flagellates - with flagella

    Parasites - feed off hosts

  • GROUP TWO - AlgaePlant-like protists


    Chloroplasts - organelle that makes food by using sunlight

  • Dynamic DiatomsGlass-like organism found on the surface of water, or rocks in shallow waterNeed sunlight for photosynthesis.Die, sink to bottom --> diatomaceous earthGood polishing agent for household scouring products (Ajax, toothpaste)

  • DinoflagellatesUnicellular organisms surrounded by a suit of armor with 2 flagella

    They glow in the dark (ocean)

    Red tide - poison - chokes out oxygen for fish (S. America)

  • Euglenoids (Euglena)Unicellular green algae that are found in freshwaterPrimarily autotrophic (make own food)Can be animal-like in which they can be heterotrophic in certain conditions (no sunlight)Moves around by a flagellumEyespot to help find light source

  • Varying Colors of AlgaeRed Algae - multicellular- found at low level in the ocean- not a plant

    Green Algae - unicellular and multicellular- scientists consider green algae to be plants (they are not)

    Brown Algae - multicellular- seaweed- form kelp forests

  • GROUP THREE - Fungus-like ProtistsHeterotrophic

    Have cell walls

    Use spores to reproduce