1. Kingdom Protista!

2. Kingdom Protista
Contains the MOST diverse organisms of all the kingdoms!
ALL are eukaryotes
Animal-like protists: Protozoa
Plant-like protists: Algae
Fungus-like protists

3. Protozoans: Animal-like Protists
Unicellular heterotrophs that move in a variety of ways
4 groups:
Amoebas
Flagellates
Ciliates
Sporozoans

4. Protozans: Amoebas
Form pseudopods to move and feed
Ex: amoeba

5. Protozoans: Cilliates
Move by beating cilia that cover the cell
Ex: parimecium

6. Protozoans: Flagellates
Move by whipping flagella from side to side
Ex: giardia

7. Protozoans: Sporozoans
Parasites
Produce spores to reproduce
Ex: plasmodium—causes malaria
malaria life cycle

8. Algae: Plant-Like Protists
Photosynthetic autotrophs may be uni- or multicellular
Produce half of the world’s oxygen!
2 main groups: unicellular and multicellular

9. Algae: Plant-Like Protists
UNICELLULAR (algae)
Euglenoids
Flagella
Diatoms
Made of shells composed silica
Dinoflagellates
Cell spins b/c of two flagella
MULTICELLULAR (seaweed)
Green Alage
Most diverse
Red Algae
Deep water
Brown Algae
air bladders help float—kelp

10. Algae: Plant-Like Protists
euglena
green algae
diatoms
red algae
dinoflagelates
brown algae

11. Fungus-Like Protists Absorb organic materials and nutrients
Resemble some types of fungi

12. Protists and Disease
Giardiasis: causes severe diarrhea and intestinal cramps that can last for 2-6 weeks
Amebic Dysentery: causes pain, bloody diarrhea, and fever. Can be fatal if moves into brain
Toxoplasmosis: a small number of people develop flulike symptoms, dangerous to developing fetuses
Trichomoniasis: STD, women experience discolored discharge, genital itching, and urge to urinate.
Cryptosporidiosis: severe cramps and diarrhea that may last up to 2 weeks
Chagas Disease: spread by kissing bugs, and can cause several heart related issues
Malaria: spread by mosquitoes, causes liver damage and destroys red blood cells causing fever & Anemia. Can lead to death if left untreated.