Kingdom Protista

KINGDOM PROTISTA
Biology 106
By: Sameera Haq
Professor Taylor Anderson-McGill
How are protists different from other
kingdoms?
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Most protists are found to be mainly unicellular and
sometimes as colonial/multicellular (unspecialized
cells)
They have characteristics that are almost animal,
plant, or fungi like but do not exactly fit into those
kingdoms
What are some general characteristics
of protists ?
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Composed of eukaryotic cells
Membrane bound organelles
DNA found in the nucleus
Plant-like-autotrophs, non-motile
Animal-like-heterotrophs, motile
Fungi-like - decomposers, some motility
What are the three kind of cellular
movements found in animal-like protists ?
Flagella- which are long tail like structures that is
moved back and fourth
Ex. Euglena
 Pseudopod- (false foot) changes it shape by
pushing the cytoplasm in one direction
Ex. Paramecium
 Cilia- are small hair like structures that move back
and forth creating movement
Ex. Amoeba
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Animal-like Phyla
Phylum Zoomastigophora
 Phylum Rhizopoda
 Phylum Ciliophora
 Phylum Sporozoa
 Phylum Foraminifera
*All of these phyla are unicellular
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Phylum Zoomastigophora
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All use flagella for locomotion
Heterotrophic
Ex. Trichonympha
Flagellas
Phylum Rhizopoda
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Forms psuedopods for movement
Heterotropic (cellular eating)
Ex. Amoeba
proteus
Psuedopods
Phylum Ciliophora
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Uses many cilia for locomotion as well as for
feeding
Heterotrophic
Cilia
Ex. Paramecium
Phylum Sporozoa
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Parasite
No locomotion (nonmotile)
Heterotrophic
Red blood cells
Ex. Plasmodium
(causes malaria)
Plasmodium
Phylum Foraminifera
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Uses podia (similar to pseudopods) for movement
Heterotrophic
Ex. Foram Shells
Plant-like Phyla
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Phylum Chlorophytha
Phylum Phaeophyta
Phylum Rhodophyta
Phylum Bacillarophytha
Phylum Chlorophyta
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Unicellular or Colonial
Autotrophic
Some organisms are motile
Also known as green algae
Ex. Chlamydomonas
Flagella present
therefore motile
Chloroplast
Phylum Phaeophyta
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Multicellular
Autotrophic
Also known as brown algae/brown sea weeds
Ex. Macrocystis
Phylum Rhodophyta
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Multicellular
Autotrophic
Also known as red algae
Ex. Chondrus crispus
Phylum Bacillarophytha
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Unicellular or colonial
Both autotrophic and heterotrophic
Most of them have exoskeletons (shells)
Ex. Diatoms
Fungi-like Phyla
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Phylum Myxomycota
Phylum Arasciomycota
Phylum Oomycota
Phylum Myxomycota
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Unicellular and Multicellular
Heterotrophic
Use flagella for locomotion
Ex. Plasmodial slime molds
Phylum Arasciomycota
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Unicellular and Multicellular
Heterotrophic
“Slug like” movement
Ex. Cellular slime molds
Phylum Oomycota
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Unicellular and Multicellular
Heterotrophic
Uses flagella for locomotion
Ex. Phytopthora infestans
Practice Questions
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Try practicing using a key
What is the domain?
Eukarya
What is the kingdom?
Protista
What is the phylum?
Ciliophora
What is the genus name?
Paramecium
What are the tiny hair like projection?
Cilia
Is it heterotrophic or autotrophic?
Heterotrophic
Where is and what is the function of
the contractile vacuole?
Its function is to regulate water and salt
balance
Is this eukaryotic or prokaryotic?
Eukaryotic
How does this organism produce
movement?
Flagella
Is this unicellular or multicellular?
Unicellular
What is the phylum?
Phylum Chlorophyta
What is that also known as?
Green Algae
What is the genus name?
Volvox
Are they unicellular or colonial?
Colonial
What is the common name?
Seaweed
What is the phylum?
Phylum Phaeophyta
How does this organism move?
Using pseudopods
How does this organism feed?
Through phagocytosis