1. PROTISTS
The “Little Guys”

3. A DIVERSE KINGDOM

4. BUT… There are some general characteristics they all share:
Unicellular (made of one cell) and Multicellular (more than one cell)
Eukaryotes (have a nucleus)
Live in moist environments

5. Animal-like Protozoans
Protists
Animal-like Protozoans
Plant-like Algae
Fungus-like
Heterotrophs
Have cell walls
Heterotrophs
Classified by how they move
Autotrophs
Have cell walls
Sarcodines (Amoeba)
Ciliates (Paramecium)
Flagellates (Giardia)
Parasites (Malaria)

6. Animal Like Protists are called Protozoans
Animal Like Protists are called Protozoans. They are unicellular and are classified into four groups based on the way they move and live.
1. Sarcodines (have pseudopods)
2. Ciliates (have cilia)
3. Flagellates (have flagella)
4. Protozoans that are Parasites

7. PROTOZOANS- Animal like Protists
1. Sarcodines
Move using PSEUDOPODS (“false feet”), bulges of the cell membrane
Example: AMOEBA
Pseudopod

8. Sarcodine Animations/Videos

9. PROTOZOANS- Animal like protists
2. Ciliates
Move using CILIA, tiny hair-like projections that move in a wavelike motion, acting like oars
Example: PARAMECIUM
Cilia

10. Ciliate Animations/Videos

11. PROTOZOANS- Animal like Protists
3. Flagellates
Move using FLAGELLA, a long, whip-like structure
Example: Giardia
Symbiosis- a close relationship in which at least one of the species benefits
Ex: Flagellates that live in the intestines of termintes
Mutualism- A type of symbiosis in which both partners benefit from living together

12. PROTOZOANS- Animal Like Protists
4. Parasites- characterized more by the way they live than how they move
Parasites that feed on the cells and fluids of their host
Example: PLASMODIUM (causes malaria)
Transmitted by mosquitoes

13. Plantlike Protists- Algae
1. Diatoms
2. Dinoflagellates
3. Euglenoids
4. Green Algae
5. Brown Algae
6. Red Algae

14. Diatoms- unicellular
Glasslike cell walls
Diatomaceous Earth

15. Dinoflagellates- colorful, unicellular algae
Surrounded by plates of armor and two flagella
-They look like spinning tops
when they move!

16. Euglenoids- green, unicellular algae found
in fresh water
They can be autotrophs and heterotrophs!
Check out the Euglena’s eyespot!

17. Red Algae- multicellular seaweeds
Green Algae- multicellular and
unicellular
Brown Algae- have many plant like
structures

18. FUNGUS-LIKE- heterotrophs that have. cell walls and (most) use
FUNGUS-LIKE- heterotrophs that have cell walls and (most) use spores to reproduce
Slime Molds
Downy Mildews
Water Molds