Kingdom Protista!

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Kingdom Protista!

• Biology 11
• Mrs. M. Cobb

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Protista

• Greek protos first
• Plants, animals and fungi likely evolved from
  protist ancestors.
• The diversity of protists represents the
  different experiments in the evolution of
  eukaryotic organization -Campbell

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• No more pleasant sight has met my eye than this
  of so many thousands of living creatures in one
  small drop of water.
• -Anton von Leauwenhoek

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3 Main Groups

• Algae (plant-like)
• Protozoans (animal-like)
• Slime molds (fungus-like)

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General Characteristics

• Protists vary in morphology lifestyle more than
  any other group of organisms!
• Therefore they are a difficult kingdom to
  describe.

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General characteristics continued

• All are eukaryotes
• Most are aquatic
• All are aerobic
• Most are unicellular
• Some are heterotrophs / some autotrophs
  (photosynthetic)

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General characteristics continued

• Some capable of locomotion (protozoans)
• Asexual Sexual reproduction
• Size varies greatly!
• 0.01 mm (single celled algae)
• 65 m (giant kelp)

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Diatoms (Golden Algae)
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Giant Kelp
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Ciliates
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Euglena
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Amoeba