1. Kingdom Protista
The Protists

2. Endosymbiosis
One single celled organism engulfs another, leading to a symbiotic relationship.
Believed to be the origins of mitochondria and chloroplast

3. Protists the protists are the most diverse kingdom Eukaryotes
Grouped by how they get nutrients
- many single celled

4. Protozoans- Animal-like Protist
Unicellular, heterotrophic
Grouped by how they move, (4 main types):

5. Amoebas -move with pseudopods- extensions of their cytoplasm
(like “the blob”)
-they engulf/ absorb their food with their pseudopods

6. Amoeba Structure Foraminiferans- calcium carbnote shells
often found fossilized
Radiolurians- silica shells make up part of phytoplankton

7. Flagellates move with flagellum – tail like projection
Some live in termite stomachs, some cause illness (African sleeping sickness)

8. Flagellate Structure Minus the chloroplasts
Trypanosoma -causes African
Sleeping sickness

9. Ciliates
move with cilia- tiny hair like projections that outline their body
Some feed on bacteria (Paramecium)

10. Ciliate Structure

11. Sporozoans move by vectors (wind, water, etc)
Can lay dormant in spores
Some cause malaria

12. Sporozoa Structure

13. Algae- Plant-like Protists
photosynthetic autotrophs
Classified by pigment color and whether they are single or multi celled

14. Euglena
Unicellular
Autotrophic (plant-like) and heterotrophic (animal-like)
In light they do photosynthesis
In the dark they are heterotrophic
They move with flagellum

15. Euglena Structure

16. Diatoms- Golden Algae unicellular, photosynthetic
Part of phytoplankton
Have shells made of silica –used a an abrasive in toothpaste, paint, etc
Store their food as oil, this gives fish that oily taste

17. Diatom: Golden Algae Structure

18. Dinoflagellates -Spinning Algae
unicellular, photosynthetic
Have two flagella that make them spin
Some are bioluminescent (light-emitting)
Some are toxic (cause red tides and fish kills)

19. Dinoflagellate Structure

20. Red tide

21. Red algae (sea weed) -multi-cellular, photosynthetic
-live in deep cold water (260m)
-used in ice cream and sushi
-absorbs blue and green light.

22. Red Algae Structure

23. Brown Algae (Kelp) Multi-cellular, photosynthetic
Air bladders help them float on the surface near light
grows up to 60m long from the bottom; rich Kelp forest provide marine habitats

24. Brown Algae Structure

25. Green Algae can be unicellular, multi-cellular, or colonial
Photosynthetic
Most diverse group of algae (over 7000 species)
Most live in fresh water, some ocean dwelling

26. Green Algae Structure

27. Green Algae reproduction

28. Fungus-like Protists multi-cellular, heterotrophic
Decompose organic matter like fungi

29. Slime Molds multi-cellular, decomposers
Creeps along like an ameoba on logs
Some have nuclei not divided by cell membrane.

30. Slime Mold structure

31. Water molds and Downy Mildew
multi-cellular, decomposers
Resemble fungi in their appearance
Downy mildew caused the Irish Potato famine

32. Water Mold and Downy Mildew