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The Eukaryotes 12a: Protozoans

Explore the world of protozoans, unicellular eukaryotes with varied nutrition, locomotion, and life cycles. Learn about their habitats, reproduction methods, and distinct forms. Discover fascinating facts about protozoans and their roles in ecosystems.

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The Eukaryotes 12a: Protozoans

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  1. The Eukaryotes 12a: Protozoans

  2. Eukaryotes in general cells chromosomes made of chromatin cell division: mitosis & cytokinesis (if) sexual reproduction meiosis fertilization

  3. http://tolweb.org/Eukaryotes/3

  4. Kingdom Protista highly diverse; may be more than 1 mostly unicellular 2 “lifestyles” photoautotrophic: algae chemohetero & often mobile: protozoa

  5. Protozoa nutrition trophozoite vs. cyst “free-living” vs. parasite Protozoa locomotion cilia/flagella/amoeboid flow by vector Protozoa life cycle & reproduction asexual: fission, budding, coenocyte, schizogony

  6. coenocyte budding schizogony

  7. Protozoa nutrition trophozoite vs. cyst “free-living” vs. parasite Protozoa locomotion cilia/flagella/amoeboid flow by vector Protozoa life cycle & reproduction asexual: fission, budding, coenocyte, schizogony sexual: gametes, zygote Protozoa habitat

  8. Eukaryotic Life Cycles/Histories (adult) (adult) Spores (adult) (adult) and some protists

  9. http://tolweb.org/Eukaryotes/3

  10. P: Fornicata Diplomanada = diplomonads: Giardia lamblia

  11. http://tolweb.org/Eukaryotes/3

  12. P: Parabasala Trichomonas vaginalis

  13. http://tolweb.org/Eukaryotes/3

  14. P: Euglenozoa/phyta Euglenids Euglena

  15. Secondary endosymbiosis

  16. Kinetoplastids trypanosomes = hemoflagellates Trypanosoma brucei gambiense T. brucei rhodesiense T. cruzi

  17. Kinetoplastids trypanosomes = hemoflagellates Leishmania cutaneous form mucocutaneous form also a visceral (organ-attacking) form

  18. http://tolweb.org/Eukaryotes/3

  19. Alveolates P: Ciliophora = ciliates Didinium Paramecium

  20. ciliate conjugation

  21. Vorticella

  22. Alveolates P: Apicomplexans

  23. Plasmodium P. falciparum, P. vivax, P. ovale & P. malariae

  24. Cyclospora cayetensis

  25. Toxoplasma gondii

  26. Alveolates P: Pyrrophyta = Dinoflagellates Peridinium red tide

  27. long exposure from Vieques Island, PR At UCSB 2003 Lingulodinium/Gonyaulax

  28. Pfiesteria -> PEAS Alexandrium -> PSP Karenia/Gymnodinium breve -> NSP

  29. http://tolweb.org/Eukaryotes/3

  30. Cercozoa P: Foraminifera (forams) CaCO3 shells

  31. Cercozoa P: Radiolarians silica shells

  32. http://tolweb.org/Eukaryotes/3

  33. P: Amoebozoa = amoebas http://micro.magnet.fsu.edu/moviegallery/pondscum/protozoa/amoeba/index.html

  34. Acanthamoeba

  35. Naegleria fowleri

  36. EID: Balamuthia mandrillaria

  37. Plasmodial slime mold: Physarum

  38. Cellular slime mold: Dictyostelium

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