1. The World of Protists “Protozoa”
A collage by Robert Magginetti made around His collection of collages combine natural history with a wide variety of images. Collectively they represent the varied and often contradictory elements of American culture.

2. Protists: What’s in the Water? Movie Trailer

3. What are Protists? Any organism that is NOT a plant, animal or fungus.
All Eukaryotic (complex with nucleus & organelles)
Most unicellular, some multicellular.

4. Where are Protists found?
Live in aquatic environments
fresh water
salt water
inside organisms

5. Classified by the way they obtain nutrition.
Animal-like
Plant-like
Fungus-like
Heterotrophs
Autotrophs
Heterotrophs

6. Characteristics of Animal-like protists
Euglena
They are classified by the way they move:
a) pseudopods
b) flagella
c)cilia
d) some are parasitic
Paramecium
Amoeba

7. Plant-like protists
Contain chlorophyll--but no roots, stems, or leaves
Ex: algae or phytoplankton

8. dinoflagellate
euglena
diatom
Red algae
Green algae

9. Fungus-like Protists Decompose organic materials
Downy mildew on soybeans
Slime mold

10. Ecological Role of Protists
Photoplankton ( plant-like protists):
Food source for larger sea animals: 1st link in ocean’s food chain
Produce 70% of Earth’s oxygen

11. Ecological Use of Protists
Human use:
Sushi wraps
Agar plates
Ice Cream
Algal bloom

12. Ecological Role of Protists
May live symbiotically (+, o) with other organisms
Trichonympha- digestive system of termites

13. Protists can cause very serious diseases
Amebic dysentery: a parasitic (+,-) disease of the large intestine. Water borne, fecal.
African sleeping sickness:
A parasitic disease of the blood and spinal fluid. Swelling of brain

14. Giardiasis: Parasitic intestinal disease. Water borne, diarrhea
Malaria: parasitic disease in red blood cells transferred by mosquitos.