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Protist Diversity

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Contains 2 types of nuclei. Reproduce through mitosis & conjugation. Protistan Molds ... Resistant Stages. Form a spore (called sporazoan) All parasitic ... – PowerPoint PPT presentation

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Title: Protist Diversity


1
Protist Diversity
  • 22-2 Pages 482-489

2
(No Transcript)
3
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!

4
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

5
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

6
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

7
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

8
Movement using Cilia
  • Ciliates
  • Covered in short flagella called cilia that are
    used for movement
  • Contains 2 types of nuclei
  • Reproduce through mitosis conjugation

9
Protistan Molds
  • Not Fungi!
  • Similar appearance and life cycle
  • Different cell wall composition

10
Extra Protistan Mold Notes
11
Resistant Stages
  • Form a spore (called sporazoan)
  • All parasitic
  • Complex life cycles

12
Extra Resistant Stages Notes
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