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Kingdom Protista
Biology
Characteristics of Kingdoms
Kingdom Unicellular
Multicellular
Autotrophic
Heterotrophic
Cell wall
No cell wall
Eukaryotic
Prokaryotic
Interesting Fact
Archaeabacteria
x x x x x Tough!! Live in extreme conditions
Eubacteria x x x x x Typical Bacteria. Cause illness and used for food, etc. Very common
Protista
Fungi
Plantae
Animalia
What is a protist?
Algae
Volvox
Radiolarians
Euglena
Red tides caused by dinoflagellates
Protists can: Be Unicellular or Multicellular Be Microscopic or very large Be Heterotrophic or Autotrophic Reproduce Sexually or Asexually
But… ***ALL ARE EUKARYOTIC***
Have a true nucleus and membrane bound organelles
“Junk Drawer” Kingdom
Organisms that are eukaryotic but don’t fit well in other Kingdoms are placed here!
II. Three Groups of Protists
A. Animal-like
B. Plant-like
C. Fungi-like
A. Animal-like
Protozoa: Animal like protists Heterotrophic All unicellular
Animal Like Protists-4 types
Shapeless protists
Flagellates
Ciliates
Sporozoa
Shapeless protists
Phylum Rhizopoda No cell wall Form Pseudopodia
Pseudo = fake Pod = foot Extension used for
feeding and moving
Flagellates
Phylum Zoomastigina Have flagella: a whip
like tail used for movement
Can be parasites and cause diseases
African sleeping sickness
Can be helpful Termite guts
Ciliates
Phylum Ciliophora Have Cilia: small hair like projections used for
movement and feeding
Sporozoans
Phylum Sporozoa Most produce spores All are parasites
Malaria
B. Plant-like Protists…
Algae: Plant like protists Uni or multicellular Autotrophic
(photosynthetic) No roots, stems,
leaves
Algae: Plant like protists
Typically water-related Same function as terrestrial plants
1/3 of oxygen production Base of aquatic food webs
Phytoplankton
Typically found near surface of water Diatoms
Shells of silica Major part of Mississippi River Food Chain Used in toothpaste, cat litter, etc.
Cont.
Dinoflagellates “Red Tides” Produce toxins that are poisonous to
vertebrates Phytophthora infestans
Green, Brown, Red Algae
Brown and Red often called “seaweed” Green algae “pond scum” Kelp-brown Porphyra-red Spirogyra-green
C. Fungi-like Protists
Fungus like protists Decomposers Can move at some
time in their life No chitin in cell wall
Slime Molds Appear much like fungus Potato Famine-1840’s Phytophthora infestans.
– 1 million dead, 1 million left
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