1. PROTISTS Classified by how they get nutrients…

2. KINGDOMS

3. PROTISTS ALL are Eukaryotic All Need WATER for Reproduction
Most are Unicellular; some alga are multicellular.
Can be Heterotrophic/Autrophic or both.

4. 3 groups- classified by how they get nutrients (food)
Protozoans (Animal-Like): reproduce by binary fission.
classified by mode of MOVEMENT. Most have a contractile vacuole to get rid of excess water.

5. ANIMAL-LIKE PROTISTS ZOOFLAGELLATES -move using flagella
-absorb food, free-living or parasitic
African Sleeping Sickness (Trypanosoma)

6. ANIMAL-LIKE PROTISTS SARCODINES
Move by extending cytoplasm (cytoplasmic streaming)
Cytoplasm extensions are called “false foot” or pseudopods
Engulf food by phagocytosis

7. ANIMAL-LIKE PROTISTS Ciliates
Ciliates are an example of animal-like Protists. They are covered with up to 17,000 cilia beating from 40 to 60 times a second in a coordinated fashion!
 PARAMECIUM
Cilia are used for locomotion.

8. SPOROZOANS
Reproduce with spore-like structure, don’t move, parasites….
Plasmodium diseases, Malaria. Transmitted to human hosts solely by way of Anophele mosquito vectors.

9. PLANT-LIKE PROTISTS Microscopic, or multicellular seaweeds
PLANT-LIKE PROTISTS Microscopic, or multicellular seaweeds. Classified by photosynthetic pigments, color and structure.
Spirogyra
Volvox

10. PLANT-LIKE PROTISTS EUGLENAPHYTES unicellular: plant and animal like characteristics
Euglena have flagella and a gullet like an animal cell. (heterotrophic injestion)
Euglena have chloroplasts like a plant cell (autotrophic photosynthesis)
And Euglena have been known to lose their chloroplasts, forcing them to absorb nutrients from their envronment (Heterotrophic absorbtion)
Consequently, Euglenoids arguably can be classified as animal, plant and fungus!

11. PLANT-LIKE PROTISTS DINOFLAGELLATES unicellular, ½ autotroph ½ heterotroph
Dinoflagellata These are single cells with both plant and animal traits. Some species have cell walls and cellulose plates. Some species produce toxins. Red tides are caused by dinoflagellates.

12. PLANT-LIKE PROTISTS GOLDEN ALGAE
Chrysophyta Members of this group often occur as tiny single cells, with yellow-green or golden-brown pigments. Golden algae can produce their own food and at least some prey on other organisms.

13. PLANT-LIKE PROTISTS DIATOMS can be used as an abrasive in cosmetics and toothpaste
Bacillariophyta Diatoms are single-celled algae that produce ornate silicon (glass) cases with a box and lid design. They contain photosynthetic pigments to produce their own food.

14. PLANT-LIKE PROTISTS RED ALGAE Deep water, multicellular
Rhodophyta Red algae are often larger, multi-cellular colonies, but include smaller microscopic species as well. Most are marine, with a few living in fresh water. They contain reddish pigments that mask chlorophyll that is also present.

15. PLANT-LIKE PROTISTS BROWN ALGAE
Phaeophyta Brown algae range from small cells to very large colonies. This group includes many; typically marine species such as kelp and sargassum.

16. PLANT-LIKE PROTISTS GREEN ALGAE
Chlorophyta Members of this group range from small single cells to much larger colonies. As their name suggests, they contain green chlorophyll. Green algae are diverse and have an array of forms.

17. FUNGUS-LIKE PROTISTS Heterotrophic, absorb nutrients from dead matter.
Slime-Molds