250 likes | 264 Views
Protists. Protista Kingdom. Unicellular and Multicellular Heterotrophic and Autotrophic Eukaryotic Contains the most diverse organisms in one kingdom. 3 Kinds of Protists. Protozoa—animal like protists Algae—plant like protists Fungus like protists. Protozoan (animal-like protists).
E N D
Protista Kingdom • Unicellular and Multicellular • Heterotrophic and Autotrophic • Eukaryotic • Contains the most diverse organisms in one kingdom
3 Kinds of Protists • Protozoa—animal like protists • Algae—plant like protists • Fungus like protists
Protozoan (animal-like protists) • Grouped according to their method of movement: • 1. Amoeba—move using a pseudopodia (false foot)-an extension of their plasma membrane • 2. Flagellates—have one or more flagella (whip-like tail) • 3. Ciliates—have hair-like cilia that cover their bodies (ex: Paramecia) • 4. Sporozoans—produce spores and are parasitic (ex: Plasmodium which causes malaria)
Amoeba proteus • move and eat by use of pseudopods (temporary projections of the cytoplasm)
Paramecium caudatum • use cilia for feeding and movement (short hair-like projections)
Algae (plant-like protists) • 1. Euglenoids—can be autotrophic or heterotrophic-use flagella for movement • 2. Diatoms—have shells composed of silica (hard shell; large component of phytoplankton) • 3. Dinoflagellates—have 2 flagella-several species cause fish kills (ex :”red tide”)
Sounds AWESOME right?! Sadly…not quite true. BEWARE OF BIASED and BOGUS claims by some in the scientific community. Importance of peer research!
Fungus-like Protists • Fungus-like in that they decompose organic materials • Examples include slime molds, water molds, and downy mildew