1. Protists Unicellular Adaptations

2. Protists Eukaryotic – Membrane bound organelles; nucleus Live in water Most are unicellular – Some are multicelluar (ex. algae) Autotrophic (make own food) Heterotrophic (cannot make own food)

3. Protists All reproduce asexually – Mitosis or binary fission Some reproduce sexually – conjugation

4. Protists Unicellular adaptations – For better survival

5. Unicellular Adaptations Contractile Vacuole Help maintain homeostasis – Hold and expel fluid (like a sponge)

6. Unicellular Adaptations Cilia – Hair-like projections – used for movement and finding food Flagella – Whip-like tail – Used for movement

7. Unicellular Adaptations Pseudopods – “false-foot” – Extension of cytoplasm – Used for movement and eating food

8. Unicellular Adaptations Eyespot – Light sensitive pigmented spot – Detects light Eyespots can also be found in flatworms

9. Protists Can be: 1.Animal-like 2.Plant-like 3.Fungus-like

10. Animal-like Protists Protozoa – Absorb and gather/capture food Using flagella Ex. protozoa that causes African sleeping sickness

11. Animal-like Protist Sarcodines – Use pseudopods to move and capture prey Ex. amoeba

12. Animal-like Protist Ciliates – Move/eat by cilia – Have oral groove and anal pore Ex. paramecium

13. Animal-like Protist Sporozoans – Parasitic; reproduce by spores Ex. Plasmodium (malaria)

14. Plant-like Protist Algae – Contains chlorophyll – Photosynthetic Ex. Euglena – can make and consume food

15. Plant-like Protist Diatoms – Various shapes, cell walls of silicon – Used in toothpaste and face wash – Used in forensics (drowned victims)

16. Plant-like Protist Dinoflagellates – Have flagella Ex. one type causes red tide

17. Plant-like Protist Multicellular algae – Green, brown, red

18. Fungus-like Protist Fungus-like – Cell walls, absorb nutrients, reproduce by spores Ex. Slime molds

19. Fungus-like Protist Water molds – Ex. Phytophthora infestans – Cause of Irish potato famine (1849-1852)