1. TSW identify and describe the characteristics of Protists
Kingdom Protista
TSW identify and describe the characteristics of Protists

2. What is a Protist?
Any organism that is not a plant, animal, fungus, or prokaryote
First Eukaryotes (has a nucleus & membrane-bound organelles)

3. Animal-like Protists: Protozoans
“First Animals”
Heterotrophic
4 Phyla
Zooflagellates
Sarcodines
Ciliates
Sporozoans

4. Zooflagellates Animal-like protists that swim using FLAGELLA
Absorb food through their cell membrane
Most reproduce asexually through mitosis & cytokinesis
Examples: Trypanosoma
Trichomonas vaginalis

5. Zooflagellates

6. Sarcodines
Animal-like protists that use pseudopods for feeding & movement
Example: Amoeba
Capture food by surrounding their meal, then taking it inside themselves to form a food vacuole

8. Ciliates
Animal-like protists that use cilia (hair-like projections) for feeding and movement
Example: Paramecium

9. Paramecium: Internal Anatomy
Trichocysts: small, bottle-shaped structures used for defense
Macronucleus: “working library” of genetic info
Micronucleus: “Reserve copy” of cell’s genes
Gullet: indentation in side that pushes food to the vacuoles
Anal pore: empties waste materials into environment
Contractile vacuole: cavity in cytoplasm that collect water

10. Sporozoans
Animal-like protists that do not move on their own & are parasitic
Reproduce by sporozoites
Example: Plasmodium (causes malaria)

11. Plant-like Protists Some unicellular, but mostly multicellular
Several types:
Euglena
Diatoms
Dinoflagellates
Algae (Red, Brown, Green)

12. Euglena
2 flagella
No cell wall

13. Diatoms 2 part shell of silicon (glass) Food stored as oil
Responsible for most oil consumed today

14. Algae
Vary in size
Seaweed
Classified by color
Red, Green, & Brown

15. Fungus-like Protists Slime Molds Heterotrophs
Absorb nutrients from organic material
Change form during life cycle
Live in damp areas