PROTISTS. KINGDOM PHYLUM GENUS FAMILY CLASS ORDER SPECIES DOMAIN.

PROTISTSPROTISTS

KINGDOM

PHYLUM

GENUS

FAMILY

CLASS

ORDER

SPECIES

DOMAIN

Kingdom ProtistaKingdom Protista

Does your family have a drawer at home where Does your family have a drawer at home where you keep "stuff"? That drawer might include a you keep "stuff"? That drawer might include a flashlight, tape measure, spare keys, rubber flashlight, tape measure, spare keys, rubber bands, or extra stamps. These objects have little bands, or extra stamps. These objects have little in common except that they are kept in the same in common except that they are kept in the same drawer for convenience. Biologists have a sort of drawer for convenience. Biologists have a sort of taxonomic "stuff" drawer: the kingdom Protista. taxonomic "stuff" drawer: the kingdom Protista. Protista is a very diverse kingdom of organisms Protista is a very diverse kingdom of organisms that do not fit neatly into any of the other that do not fit neatly into any of the other kingdoms.kingdoms.

Protist Characteristics Protist Characteristics

Eukaryotic (have a nuclear membrane)Eukaryotic (have a nuclear membrane)

Very diverse kingdomVery diverse kingdomMost are unicellularMost are unicellularFree-living (not parasites)Free-living (not parasites)Protist cells are the most complex cellProtist cells are the most complex cell– ** NOT specialized for 1 function**** NOT specialized for 1 function**

Kingdom ProtistaKingdom Protista

Grouping Protists by Grouping Protists by nutritionnutrition3 Major categories:3 Major categories:

1) animal-like (protozoans)1) animal-like (protozoans)

2) fungus-like2) fungus-like

3) plant like = algae3) plant like = algae

Grouping Protists by Grouping Protists by nutritionnutrition1) animal-like (Protozoans)1) animal-like (Protozoans)

**heterotrophs: get energy & organic molecules by heterotrophs: get energy & organic molecules by eating…eating…

bacteriabacteria

other protistsother protists

decaying matterdecaying matter

* found mostly in aquatic environments* found mostly in aquatic environments

* Grouped by motility* Grouped by motility

Zooflagelletes Zooflagelletes

Move by flagellaMove by flagella

GiardiaGiardia

Amoeba with Pseudopods Amoeba with Pseudopods

Have pseudopodsHave pseudopods

AmoebaAmoeba

Ciliated ParameciumCiliated Paramecium

Small hair-like ciliaSmall hair-like cilia

ParameciumParamecium

ApicomplexansApicomplexans

No movement (they No movement (they are parasites)are parasites)

Plasmodium- causes Plasmodium- causes malariamalaria

Grouping Protists by Grouping Protists by nutritionnutrition3 Major categories:3 Major categories:

2) fungus-like2) fungus-like

3) plant like = algae3) plant like = algae

Grouping Protists by Grouping Protists by nutritionnutrition2) fungus-like2) fungus-like

heterotrophic…….get food & energy by decomposing heterotrophic…….get food & energy by decomposing DEAD organic matterDEAD organic matter

NOT to be confused with fungi, though they are similarNOT to be confused with fungi, though they are similar

Grouping Protists by Grouping Protists by nutritionnutrition2) fungus-like2) fungus-like

Major types:Major types:

plasmodial slime moldsplasmodial slime molds

water molds/ downy mildewswater molds/ downy mildews

Grouping Protists by Grouping Protists by nutritionnutrition3 Major categories:3 Major categories:

3) plant like = algae3) plant like = algae

Grouping Protists by Grouping Protists by nutritionnutrition3) plant like = algae3) plant like = algae

autotrophs…….chloroplasts harness sunlight to make autotrophs…….chloroplasts harness sunlight to make food (carbohydrates)food (carbohydrates)

unicellular, colonial, OR multicellularunicellular, colonial, OR multicellular

Grouping Protists by Grouping Protists by nutritionnutrition3) plant like = make own food3) plant like = make own food

TYPES:TYPES:

euglenoids- flagella, chloroplast, eyespot, no cell euglenoids- flagella, chloroplast, eyespot, no cell wallwall

- live in fresh water- live in fresh water

Grouping Protists by Grouping Protists by nutritionnutrition3) plant like = make own food3) plant like = make own food

TYPES:TYPES:

Dinoflagellates- 2 flagella, spin, cell wallDinoflagellates- 2 flagella, spin, cell wall

- plankton, red tide- plankton, red tide

- bioluminescence- bioluminescence

Grouping Protists by Grouping Protists by nutritionnutrition3) plant like = make own food3) plant like = make own food

TYPES:TYPES:

Diatoms- glass-like cell wall (silica)Diatoms- glass-like cell wall (silica)

- chlorophyll- chlorophyll

- diatomaceous earth - diatomaceous earth

Grouping Protists by Grouping Protists by nutritionnutrition3) plant like = make own food3) plant like = make own food

TYPES:TYPES:

Seaweed- large, multicellular marine algaeSeaweed- large, multicellular marine algae

- NOT plants (lack true roots, stems, leaves)- NOT plants (lack true roots, stems, leaves)

- foods, used to thicken foods- foods, used to thicken foods

1) BROWN ALGAE (kelp)1) BROWN ALGAE (kelp)

2) RED ALGAE2) RED ALGAE

3) GREEN ALGAE3) GREEN ALGAE