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Published byAugustus Barrett Modified over 9 years ago
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Kingdom Protista Unicellular plants and animals
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General Information Protista, from the Greek protistos = first Diverse group Aka Algae & Protozoa Most are Unicellular exception: Volvox is colonial
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Characteristics 1. Eukaryotic (have a nucleus)
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Characteristics 2. Many feeding patterns some plant-like, some animal-like, some saprophytes (absorb food like fungi do) some parasites (pathogens)
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3. Habitats Almost anywhere there is water
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4. Reproduction a. Alternation of Generations ☯ switch btwn. asexual repro. (spores) & sexual repro. (gametes) & back again
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5. Multicellularity ❀ Cells specialized for f(x)s ❀ Division of labor ❀ E.g. holdfast cell, gamete-forming cells Holdfast cell
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6. Classification by Exclusion ✿ If organism doesn’t belong in any other phylum, put it in this one! I.e. Weirdos go in this group!
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7. Protist Groups a. Pseudopodia for locomotion = “false feet” Animal-like, parasites AMOEBAS E.g. ★ Amoeba E.g. Entamoeba histolytica (amoebic dysentary)
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8. Protist Groups b. Foraminifera Source of CaCo 3 (calcium carbonate / chalk) E.g. The white cliffs of Dover
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8. Protist Groups c. Diatoms Photosynthetic, unicellular, double shells of SiO 3(glass)
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8. Protist Groups d. Green Algae plant-like protists E.g. ★ Volvox, endosymbionts of jellyfish
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8. Protist Groups e. Red Algae Source of agar (growth medium for bacteria)
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8. Protist Groups f. Brown Algae E.g. kelp
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8. Protist Groups Protists with Flagella (animal-like) g. Dinoflagellates E.g. Gonyaulux Capable of bioluminescence (glowing in the dark) the red tide makes scallops toxic to humans
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Red (Crimson) Tide
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8. Protist Groups ✰ Trichonympha in termites digest wood (cellulose) ✰ Causes giardia / backpackers’ disease
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8. Protist Groups h. Euglenoids e.g. ★ Euglena ★ use flagella to move
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8. Protist Groups i. Cilia for locomotion - Ciliates) ★ Paramecium
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8. Protist Groups j. Slime Molds Cellular Acellular
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8. Protist Groups k. Water Molds E.g. potato blight Caused potato famine in Ireland 1845-1847 400,000 starved
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8. Protist Groups l. ★ Sporozoans Cannot move themselves Move via vectors
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l. ★ Sporozoans EXAMPLES: E.g. Plasmodium (causes malaria) vector = Anopheles mosquito E.g. Toxoplasmolysis (from cat feces causes fetal death) E.g. African sleeping sickness vector = tsetse fly
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