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Protists. A Kingdom of Life. Algae. By Davis Barber, Pete Carrol, and KC McCarthy. Cell Complexity and Structure. Protists can be both multi/unicellular Has a nucleus All are eukaryotes Some lack a cell wall Most have mitochondria Some have chloroplasts-allowing photosynthesis
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Protists A Kingdom of Life Algae By Davis Barber, Pete Carrol, and KC McCarthy
Cell Complexity and Structure • Protists can be both multi/unicellular • Has a nucleus • All are eukaryotes • Some lack a cell wall • Most have mitochondria • Some have chloroplasts-allowing • photosynthesis • Have DNA and RNA
Major Phyla and Species • Animal-like protists • Phylum Amoebas: Example Amoeba • Phylum Ciliophora: Example Paramecium • Phylum Sporozoa : Example Plasmodium • Phylum Flagellates: Example Trypanosoma • Coralline Algae • Plant-like protists • Phylum Red Algae: Example Chondrus • Phylum Brown Algae: Example Laminaria • Phylum Green Algae: Example Ulva • Fungus-like protists • Phylum Cellular slime molds: Example Dictyostelium • Phylum Plasmodial slime molds: Example Physarum • Phylum Water Molds, Mildews, Rusts: Example Phytophthora Algae Trichonypha Tetrahymena Amoeba
How Protists Feed and Obtain Energy • Animal-Like Protists (Protozoa) • Heterotrophic • Must move around to obtain energy • Plant-Like Protists (Algae) • Autotrophic • Means they do no need to move around to obtain energy • Contain chlorophyll and a chloroplast Type of green algae
Reproduction MITOSIS • Parent cell divides • Turns into two cells • Each resulting cell is ½ size of parent cell • Occurs in protists such as amoebas • BASIC PROTISTS • Reproduce through sexual and asexual reproduction • Meiosis and Mitosis like any organism • MEIOSIS • Occurs in protists such as Paramecia • Two cells join at oral grooves • Genetic material is transferred • Several divisions occur, resulting in eight new cells