The Eukaryotes
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Transcript of The Eukaryotes
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THE EUKARYOTES
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Eukaryotes Generally larger than prokaryotic cells
Contains a nucleus and other organelles bound by a membrane
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Eukaryotes The mitochondria and chloroplast:
In terms of cellular organelles, what makes the mitochondria and chloroplast unique?
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Protista Extremely diverse group of eukaryotes
Range from simple, single-celled organisms to giant, multicellular organisms
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Protista
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Protists Mainly aquatic organisms
Some are autotrophs Others are heterotrophs
Many are symbiotic organisms Know examples!
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Types of Protists
Found in the table on page 63.
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Types of Protists Autotrophs: Undergo photosynthesis
similar to plants
Euglenoids: Single-cellular
Diatoms: Single-cellular
Algae (Red, Green, or Brown)
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Types of Protists
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Types of Protists
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Types of Protists Heterotrophs
Ciliates: single cells with many cilia Flagellates (dino- and choano-)
Unicellular with flagellum
Amoebas: Unicellular Move by deforming cell
Cells extend “pseudopods” out
Apicomplexa: Unicellular All parasitize animals
Plasmodium: Causes malaria Cryptosporidium: Water-born protist causing diarrhea
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Types of Protists
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Protist life cycles Simple unicellular organisms
Describe the process by which these organisms undergo reproduction and a process that results in increased genetic diversity.
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Protist life cycles Multicellular organisms and parasitic
organisms
Usually have more complex life cycles
Alternation of generation
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Life cycle of brown algae
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Life cycle of Plasmodium Know Figure 14 on page 66 of textbook