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A eukaryote that is not a plant animal or fungus
Eukaryotes are cells that have a nucleus (protists are NOT bacteria) Most protists are unicellular and live in water
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Watch Protista Video
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Usually motile Heterotrophic – must consume food Examples: ameba, paramecium Classified by how they move
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Move using a flagella
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Move using cytoplasmic extensions called pseudopodia (“false feet”)
Movement is also called ameboid movement
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Watch the Amoeba Video
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Protists that move using cilia
Ex: Paramecium
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Paramecium join at the mouth pore and exchange DNA from the micronucleus
Afterward, they divide (mitosis) and the offspring are different from the original parent This is a form of SEXUAL reproduction
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Plantlike Protists: Unicellular Algae
Plantlike Protists: Unicellular Algae *Contain chlorophyll and carry out photosynthesis *Commonly called algae *Examples: Euglenophytes, chrysophytes, diatoms, dinoflagellates
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Euglena Live in water Have flagella for movement Use chloroplasts for photosynthesis, Can turn into heterotrophs if they are kept in the dark Eyespot used for sensing light and dark
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Click the link below to watch the Euglena Tutorial…
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Funguslike Protists *Heterotrophs *Decomposers
*Called slime molds and water molds *Water molds responsible for the Irish Great Potato Famine Water mold responsible for the Irish Great Potato Famine Water molds decompose dead animals in aqueous environment
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