Kingdom Protista What are the groups of multicellular plant-like protists? What are the similarities and differences between the fungus-like protists?

Multicellular Plant-Like Protists Brown algae (phylum Phaeophyta) Contain chlorophyll a and c and fucoxanthins Marine Found in cool, shallow waters of temperate and arctic areas Examples: Kelp, Sargassum, and Fucus

Multicellular Plant-Like Protists Green Algae (phylum Chlorophyta) Contain chlorophyll a and b Found in fresh and salt water Unicellular Green Algae Chlamydomonas Colonial Green Algae Spirogyra forms long, threadlike colonies called filaments Volvox consists of 500 to 50,000 cells arranged to form hollow balls

Multicellular Plant-like Protists Green Algae (phylum Chlorophyta) Multicellular Green Algae Ulva – sea lettuce

Multicellular Plant-Like Protists Red Algae (phylum Rhodophyta) Contain chlorophyll a and phycobilins Found in marine water from polar region to tropical waters Grow anywhere from ocean’s surface to 260 meters

Fungus-like Protists Slime Molds – play a key role in recycling organic material Cellular Slime Molds (phylum Acrasiomycota) Usually free-living cells Lack of food: cells come together as a colony to reproduce sexually Acellular Slime Molds (phylum Myoxmycota) Lack of food: cells fuse to produce structures with many nuclei (plasmodium) and then reproduce sexually

Fungus-like Protists Water molds (phylum Oomycota) Feed on dead or decaying organic matter in water and are plant parasites on land Produce thin filaments called hypha, but no cell walls are present