• By Tae Sung Huh

TSW 8

What is protist?

• Protists are eukaryotics. • kingdom Protista, mostly classified by how they move

– Protists– fungus-like – plant-like protists.

• Phacus Giant Kelps

Protozoan• Like animals, animal like protists are called protozoans and

they are heterotrophs but unlike animals, they are unicellular.

• It could be classified as protozoans with pseudo pods, Cilia, Flagella and others.

• Protozoans– pseudopods

• Pseudopods bulges of cytoplasm oozes.

• Protozoans with Cilia

• Ciliates hairlike structures.– move,– obtain food – sense the enviroment.

• Has complex cells

• Protozoans with Flagella

• Flagellates and uses tails to move

• Most Flagellates have one to eight long, whiplike flagella that help them move.

• Other Protozoans

• Sporozoans– Floaters – many are parasites

• Sporozoans feed on the cells and body fluids of their hosts.

Fungus like Protists

• Second group of protists are fungus like protists,.

• Fungus like protists are heterotrophs, have cell walls, and use spores to reproduce.

• Water molds and Downy Mildews

• Most water molds • Downy mildews

– live in water or in moist place.

• It also attacks crops and fishes.

• Slime molds

• Slime molds – live in moist soil and on decaying

plants and trees.– They are often beautifully colored

Plant like protists• Plant like protists, which

are commonly called algae , are even more variad than the animal like and the fungus like protists.

• They are aututrophs like the plants.

• Euglenoids

• Euglenoids are green and unicellular.

• Found in fresh water (mostly)

• They could be heterotrophs under certain conditions.

• Dinoflagellates

• Dinoflagellates are unicellular.

• Covered by stiff plates that look like a suit of armor.

• They are any colors.

• Green Algae

• Contain green pigments• Quite diverse• Most are unicellular• Some from colonies and

few are a multicellular.

• Red Algae

• Most are multicellular seaweeds.

• It could grow 260m below the sea level.

• Some are used in ice creams and hair conditioners.

Brown Algae

• Most seaweeds are a brown algae.

• In their brown pigment, there are green, yellow, and orange pigments.

• It flourish in cool, rocky waters.