Kingdom Protista Chapter 20 “Diversity is the Key”
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Transcript of Kingdom Protista Chapter 20 “Diversity is the Key”
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Kingdom ProtistaKingdom Protista
Chapter 20“Diversity is the Key”
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What is a protist?What is a protist?
UnicellularEukaryoticClassified into 3 general categories
Animal likePlant likeFungus like*Based on mode of metabolism
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Animal Like ProtistsAnimal Like Protists
Classified by movement1. Zooflagellates2. Sarcodines3. Ciliates4. Sporozoans
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ZoomastiginaZoomastigina
Euglena, Trypanasoma“Flagellates” move by using a whip like tailHave red pigmented eyespot for detecting light
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SarcodinaSarcodina
Amoeba proteus
Move and eat using psuedopodsFlexible and activeFresh and Salt Water
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CiliophoraCiliophora
Paramecium/Vorticella Move by using ciliaMacronucleus-day to dayMicronucleus-chromosomes and DNAStentor to the rightFresh and Salt WaterContractile Vacuoles to remove water
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SporozoaSporozoa
PlasmodiumReproduce using sporesParasites, carried by insectsPlasmodium causes malaria
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Plant Like ProtistsPlant Like Protists
Classified by color1. Diatoms2. Dinoflagellates3. Red Algea4. Brown Algea5. Green Algea
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BacillariophytaBacillariophyta
DiatomsContain carotenoids for their gold pigmentsHave geometric shells that are cell walls made of silica Marine and FreshwaterMany Uses (glass,toothpaste, soil component)
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PyrrophytaPyrrophytaDinoflagellatesDouble flagellaCan secrete toxins in Red Tide (found in shellfish)Not all toxic, give off light
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RhodophytaRhodophyta
Red AlgaeAbsorbs blue wavelengths of light allowing them to live deeper in the water columnHelps build coral reefs
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PhaeophytaPhaeophyta
Brown algae/KelpLargest of the algaeCan grow up to 60 mClosely related to land plants in structureMostly marine
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Giant KelpGiant Kelp
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ChlorophytaChlorophyta
Volvox, UlvaMost numerous of all plantlike protistsFresh and marine water, green algaeMost attach to rocks Ulva shown to the right
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Fungus Like ProtistsFungus Like Protists
Classified by reproduction1. Cellular Slime Molds2. Acellular Slime Molds3. Water Molds
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AcrasiomycotaAcrasiomycota
Cellular Slime MoldsMove like amoebaReproduce with spores from “fruiting body” and undergo cell division?When food runs out, spores are released
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MyxomycotaMyxomycota
Plasmodial Slime MoldsConsidered a giant bag of cytoplasm with many nucleiReproduce by spores from “sporangia”Extend vein like structures to absorb decaying foodCan grow several meters
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OomycotaOomycota
Water molds and downy mildewsSaprophytic or ParasiticThrive on detritus in the waterMake “hyphae” or thin filaments Alternate b/t sexual and asexual reproduction