Protist Diversity

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Protist Diversity

• 22-2 Pages 482-489

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(No Transcript)
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Group Activity

• Each group will receive a topic
• Must find a minimum of 3 and a maximum of 6 main
  points from the assigned topic.
• You have 20 minutes only!

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Movement Using Cytoplasm

• Amoebas
• Move using flexible cytoplasmic extensions called
  psuedopodia
• No cell walls or flagella, but extremely flexible
• Foraminifera
• Long, thin projections of cytoplasm extend
  through the pores to aid in swimming

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Double Shells

• Diatoms
• Photosynthetic Unicellular
• Can have radial and bilateral symmetry
• Move by gliding by secreting chemicals through
  the holes in their shells
• Empty shells form thick deposits that have useful
  in industry

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Multicellular

• Green Algae
• Sexual asexual reproduction
• Contain chlorophyll, same pigment found in plants
• Red Algae
• Efficient at absorbing the light that penetrates
  deep water
• Brown Algae
• Provides food shelter for many organisms

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Movement using Flagella

• Dinoflagellates
• Unicellular phototrophs
• Found in fresh water
• Zoomastigotes
• Unicellular heterotrophs
• Causes disease in humans, but lives symbiotically
  with other organisms
• Euglinoids
• Moves with 2 flagella is light sensitive
• Changes shape reproduces through mitosis

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Movement using Cilia

• Ciliates
• Covered in short flagella called cilia that are
  used for movement
• Contains 2 types of nuclei
• Reproduce through mitosis conjugation

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Protistan Molds

• Not Fungi!
• Similar appearance and life cycle
• Different cell wall composition

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Extra Protistan Mold Notes
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Resistant Stages

• Form a spore (called sporazoan)
• All parasitic
• Complex life cycles

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Extra Resistant Stages Notes