1. KINGDOM PROTISTA

2. Characteristics Unicellular or Colonial (some algae)
Eukaryotic
Unicellular or Colonial (some algae)
Heterotrophic or Autotrophic
Require moist conditions to thrive.

3. Importance of Protists
Bottom of Food Chains (largest biomass of many aquatic ecosystems)
Photosynthesis (create as much as 80% of the oxygen)
Control Bacterial populations (yum, yum) esp. aquatic
Act as Decomposers – recycle organic matter
 Assist Many Animals With Digestion – break down plants in guts of many vertebrates
 Cause Many Diseases (Malaria, Beaver Fever, Dysentery, African Sleeping Sickness, Montezuma’s revenge…)

4. Reproduction
Asexual = BINARY FISSION
Sexual = CONJUGATION

5. CLASSIFICATION phytoplankton zooplankton plasmodium
Plant-like protists (algae)
Autotrophic (photosynthetic)
Animal-like protists (protozoans)
Heterotrophic
zooplankton
plasmodium
Fungi-like protists (slime molds)
Heterotrophic

6. Zooplankton = The Protozoans
4 phyla
Phyla Sarcodina
Phyla Mastigophora
Phyla Ciliophora
Phyla Sporozoa

7. Phyla Sarcodina The Amoebas Heterotrophic
MOVE WITH PSEUDOPODS (false feet)
Cytoplasmic streaming
Phagocytosis (engulf prey) into food vacuoles
Can parasitize humans (ie: amoebic dysentery)
Reproduce asexually = binary fission

14. Phyla Mastigophora The FLAGELLATED protozoans Many are parasitic
Trypanosoma (African sleeping sickness)
Spread by Tstse Fly
Form cysts that are transferred to hosts

17. TSTSE FLY

18. Phyla Sporozoa CAN’T MOVE around SPORES!
CAN’T MOVE around
SPORES!
Are all parasites that parasitize animals
Malaria carried by Anopheles Mosquito
Cryptosporidium

19. malaria
complex life cycle

22. Phyla Ciliophora The CILIATED Protozoans Complex Swim with cilia
Usually Asexual = binary fission
Sexual = conjugation  

27. phytoplankton
3 phyla
Phyla Euglenophyta
Phyla Chrysophyta
Phyla Pyrrophyta

28. Phyla Euglenophyta Euglena Have flagella
Autotrophic, but can be heterotrophic in darkness

29. VOLVOX: http://www.youtube.com/watch?v=R0Y7k4gOYko&feature=related
CHLAMYDOMONAS

30. Phyla Pyrrophyta The Dinoflagellates Most of the phytoplankton
Can cause ‘red tide’
All autotrophic
Can bioluminesce  

33. Phyla Chrysophyta The Diatoms Have silica (glass) shells
Some are flagellated
Are all autotrophic

35. plasmodium 1 phyla Phyla Myxomycota

36. Phyla Myxomycota The SLIME MOLDS (fungi like protists)
Heterotrophic Decomposers
Spend most of their lives as separate single-celled amoeboid or flagellated protists
In unfavorable conditions, the cells come together to make a sporangia which releases spores. When conditions become favorable again, these spores become protists again!

37. SLIMY

42. VOLVOX (a colonial protist)
This is a colony. The cells can live independently, but associate for reproduction. The volvox is a hollow ball of cells. Significance? Ancestors like them were probably the evolutionary ancestors of multicellular animals.