The Odds and Ends Kingdom Kingdom Protista The Odds and Ends Kingdom

Characteristics of Protists Eukaryotes Autotrophic, Heterotrophic or both Multicellular and Unicellular Reproduce sexually and asexually Live in moist surroundings Some can move some cannot

Three Groups of Protists Scientists divide protists into categories based on characteristics they share with organisms in other kingdoms Animal-Like protists Plantlike protists Funguslike protists

Animal-Like Protists Called animal like because they are heterotrophs they are able to move from place to place to obtain food Another name for animal-like protists is Protozoans Why not animals? they are unicellular

4 groups of Animal-Like Protists Grouped based on how they move and live Protozoan with Pseudopods (false foot) Protozoan with Cilia Protozoan with Flagella Protozoan that are parasites

Protozoan with Pseudopods Pseudopods means False Foot Example is an Amoeba

Protozoan with Cillia Cillia-hair like projections from cells that move with wavelike motion Example is a Paramecium Reproduces both asexually through binary fission and sexually through conjugation

Protozoan with Flagella Flagella—whip like structure used to move Live in symbiosis with other organisms Sometimes helping host, sometimes hurting

Protozoan that are Parasites Feed on the cells and body fluids of a host Plasmodium is a protozoan that has more than one host and causes malaria Transferred by mosquitoes

Plantlike Protists Commonly called algae Autotrophs Multicellular and unicellular Reproduce sexually and asexually

Diatoms Unicellular Glasslike cell walls

Dinoflagellates Unicellular Variety of colors—many glow in the dark Two flagella to move

Euglenoids Green, unicellular, found in freshwater Autotrophs but can be heterotrophs when sunlight is not available Has an eyespot and a flagellum

Red Algae Almost all are multicellular Red pigment helps them grow deeper in the water Used in products such as ice cream and hair conditioner In Asian cultures it is eaten fresh, dried, or toasted

Green Algae Ulva Colony Very diverse Green pigments Most unicellular—some form colonies and a few are multicellular Most live in water, some on land Ulva Colony

Brown Algae Commonly called seaweed Multicellular Contain brown, yellow, green, and orange pigments Bladders to float upright

Funguslike Protists Heterotrophs with cell walls Use spores to reproduce Three types Slime molds—live in moist soil and decaying plants Water molds and downy mildew—live in water and moist places