Protists 5/4/2019

Protista Kingdom Unicellular and Multicellular Heterotrophic and Autotrophic Eukaryotic Contains the most diverse organisms in one kingdom 5/4/2019

3 Kinds of Protists Protozoa—animal like protists Algae—plant like protists Fungus like protists 5/4/2019

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) 5/4/2019

Amoeba proteus move and eat by use of pseudopods (temporary projections of the cytoplasm) 5/4/2019

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some use flagella to move 5/4/2019

Paramecium caudatum use cilia for feeding and movement (short hair-like projections) 5/4/2019

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5/4/2019 CLICK

Eyespot – Phototaxis and/or chemotaxis 5/4/2019

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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”) 5/4/2019

Euglena gracilis 5/4/2019

Stentor coeruleus 5/4/2019

Diatoms 5/4/2019

Dinoflagellate 5/4/2019

Sounds AWESOME right?! Sadly…not quite true. BEWARE OF BIASED and BOGUS claims by some in the scientific community. Importance of peer research! 5/4/2019

Fungus-like Protists Fungus-like in that they decompose organic materials Examples include slime molds, water molds, and downy mildew 5/4/2019

Slime mold 5/4/2019

mildew 5/4/2019

Phytophthora infestans 5/4/2019