Kingdom Protista - · PDF file09.02.2017 · Protista Organisms are single celled...
Transcript of Kingdom Protista - · PDF file09.02.2017 · Protista Organisms are single celled...
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Kingdom Protista
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Protista Evolutionary Advancement
Protista Organisms are single celled or multicelled They are a Eukaryotic Cell
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Why Protists Are Important!~ Major Photosynthesis producers for ecosystems
~ Are used in food additives, seaweed products: toothpastes, cosmetics and paints.
~ Many Protists are parasites and will live in or on other organisms
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There are 6 phylums of protists...
Yes you need to know them!
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1. Euglenophyta Ex: Euglena & Paramecium
Live in Fresh water especially still waters
Can take in solid food
autotrophs
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2. Chrysophyta Example: Diatoms
In fresh water and salt water
Are Autotrophs and contain chlorophyll
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3. Phyrrophyta Example: Dinoflagellates
Autotroph
chlorophyll and red pigments
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4. Chlorophyta Ex: Green Algae
Green algae live mainly in fresh water and moist soils
Are autotrophs
contain chlorophyll and carotene
multicellular or unicellular
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5. Phaeophyta Example: Brown Algae
live in colder seawater
multicellular
autotrophic
contain chlorophyll and fucoxanthin
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6. Phodophyta Example: Red Algae
Live in warm fresh water
multicellular
autotrophic
contain chlorophyll, carotene & phycobilin
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The Origins of EukaryotesProtists were the first eukaryotes cells
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Characteristics of Protists
Have Pseudopods (“False Feet”) for locomotion or will use a flagellum/cilia
Feeds by engulfing food by wrapping pseudopods around particles
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They use asexual reproduction and Sexually Sometimes you will find some protists that will have more than one cell!
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Interactions in Ecosystems
Protists play a key role as producers and consumers i.e. Large green, red and brown algae (seaweed) produce energy in photosynthesis for aquatic ecosystems
with global warming if we lost protists like algae the aquatic food webs would become unbalanced.
Corals rely on a symbolic relationship with protists to help produce their food.
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Plant-Like Animal-LikeAutotroph Heterotroph
No Movement Movement by: Cilia, Flagellum & Pseudopods
Typically called “Algae” Typically called “Protozoans”Unicellular or Multicellular Unicellular
Nourishment by Photosynthesis
Nourishment by Engulfing Food Particles
Defined Organelles ~ Eukaryotic
Defined Organelles ~ Eukaryotic
A Comparison Animal-Like vs. Plant-Like