1. Protist Diversity BIOL 1407

3. Protists Eukaryotes that are not plants, animals or fungi Area of intense research Taxonomy in flux

4. Protists ≠ Clade Informal Groups: –Algae –Protozoans –Fungal-like protists Photo Credit of Kelp: Stef Maruch, 2007, Wikimedia Commons

5. Body Organization Unicellular Colonial Multicellular Dinobryon, a colonial golden brown alga Bonnemaisonia hamifera (a red alga)

6. Membrane Transport Gas exchange Waste disposal Water balance Ion balance Ciliates (Stentor and Paramaceium)

7. Water Balance Watch videos of Contractile Vacuoles http://www.linkpublishing.com/video- transport.htm#Paramecium_- _Contractile_Vacuoleshttp://www.linkpublishing.com/video- transport.htm#Paramecium_- _Contractile_Vacuoles http://www5.pbrc.hawaii.e du/allen/ch09/video/vid-1/http://www5.pbrc.hawaii.e du/allen/ch09/video/vid-1/

8. Nutrition Autotrophs Heterotrophs –Ingestive –Absorptive Mixotrophs

9. Algae Autotrophic protists Some mixotrophs Important in food chains in aquatic habitats Includes –Phytoplankton –Seaweeds Euglena

10. Diatoms

11. Dinoflagellates

12. Green Algae: Volvox

13. Seaweed: Red Algae

14. Seaweed: Brown Algae

15. Protozoans Ingestive heterotrophs Mostly unicellular Planktonic or sessile Free-living or parasites

16. Ciliates

17. Foraminiferans

18. Radiolarians

19. Giardia

20. Plasmodium

21. Trypanosoma

22. Fungal-like Protists Resemble fungi during life cycle Make spores More closely related to amoeboids than fungi Photo Credit: Dr. Tom Volk, http://botit.botany.wisc.edu/toms_fungi/oct200 3.html http://botit.botany.wisc.edu/toms_fungi/oct200 3.html

23. Plasmodial Slime Molds

24. Cellular Slime Molds

25. The End Unless otherwise specified, all images in this presentation came from: Campbell, et al. 2008. Biology, 8 th ed. Pearson Benjamin Cummings.