PROTISTA KINGDOM

Has a nucleus

Mostly Unicellular

Some are multicellular

Heterotrophs

They have cell walls

Use spores to reproduce

Spores are tiny cells that can grow
into a new organism

Two main groups

Slime Mold

Brightly colored

Lives in moist, shady places

They range from very tiny to as large as several meters

Water Molds and Downy Mildew

Most live in water

They grow in tiny threads
that look like fuzz

Responsible for Irish Potato Famine

Called Protozoans

Heterotrophic

Can move

Does not have a cell wall

4 main groups:

Sarcodines

feed using pseudopods, or false feet

have a contractile vacuole, a structure that
collects and repels extra water

Example: amoeba

Ciliates

Use cilia to move and eat
*cilia are hair-like projections that move like oars in a wave-like motion
* cilia sweep food to the ciliates

Example: Paramecium

Flagellates

Use flagella, or a whip-like tail structure to move

Can have one or more flagella

Example: Paranema

Parasites

Feed on the cells and bodily fluids of their host

many have more than one host

Example: plasmodium

Commonly called Algae

Autotrophic

7 main groups

Algae

Very important in oxygen production

Most live in water, some live on damp surfaces

All algae contain chlorophyll and photosynthesize

Diatoms

Have glass-like cell walls

Float near surface of lakes and oceans

move by oozing chemicals out of slits in cell walls

Used in scouring products and insecticides

Dinoflagellates

Surrounded by stiff plates

Come in a variety of colors, including glow in the dark

All have two flagella

Responsible for red tides

Euglenoids

Green, usually found in fresh water

autotrophs or heterotrophs

use flagella for movement

Red Algae

Multi-cellular seaweed

needs only small amount of sunlight

used in hair conditioner and ice cream

contains red chlorophyll

Green Algae

Contain green pigments

unicellular, multicellular, or colonial

Closely related to plants

Brown Algae

Seaweed with many pigments

Has many plant-like structures