1. PROTISTS

3. PROTISTS unicellular (single celled) eukaryotic organisms

4. PROTISTS Evolved about 2 billion years after monera
Characteristics in common with plantae, animalia, and fungi
Protista was created to have a place for all the “unclassified”

5. Where did protists come from?
ENDOSYMBIOSIS HYPOTHESIS

6. ENDOSYMBIOSIS HYPOTHESIS 1st eukaryotes were formed by the symbiosis of several prokaryotes

7. ENDOSYMBIOSIS HYPOTHESIS
Proposed by Lynn Margulis

8. Hypothesis
Endosymbiosis

9. 3 TYPES OF PROTISTS
Animal-like
Plant-like
Fungi-like

10. Animal-like Protists

11. 4 Phyla of Animallike Protists
Ciliophora
Zoomastigina
Sporozoa
Sarcodina

12. Ciliophora Aka “cilliates” because they use cillia for movement.
Cillia are hair like projections that work like oars in the water
Example = paramecium

13. Paramecium

14. Zoomastigina Move through the water using flagella
Flagella are long, whiplike projections (like the tail of a sperm)

15. Zoomastigina

16. Sporozoa Non-motile (do not move) All are parasitic
Reproduce using spores
Example: Plasmodium which causes malaria

17. Plasmodium falciparum

18. Sarcodina Use pseudopods (false foot) for movement
Pseudopods are temporary projections of cytoplasm that help in movement and feeding
Example = amoeba

19. AMEOBA

20. Plantlike Protists

21. 3 Phyla of Plantlike Protists
Euglenophyta
Pyrrophyta
Chrysophyta

22. Euglenophyta Flagellates with Chloroplasts
Closely related to zoomastinans.
example = euglena

23. EUGLENA

24. Pyrophyta
Only eukaryote that does not have histones (proteins that tightly coil DNA)
Most are luminescent (give off light)
Example: Dinoflagellates

25. Dinoflagellates

26. Red Tide caused by dinoflagellates

27. Chrysophyta Includes yellow-green algae, golden brown algae, diatoms
Example: Diatoms

28. DIATOM

29. Funguslike Protists

30. 2 Phyla of Funguslike Protists
Both are Slime Molds
Acrasiomycota: cellular slimemolds
Myxomycota: acellular slime molds

31. Acrasiomycota AKA Cellular Slime Molds
Spend most of their lives as separate single-celled amoeboid protists
The individual cells may come together into a great swarm

32. Myxomycota AKA plasmodial slime molds
Have 1 cell with thousands of nuclei

33. MYXOMYCOTA