Protists Diversity of Protists Protozoans Slime Molds Algae Ecological Role & Disease

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Protists Diversity of Protists Protozoans Slime Molds Algae Ecological Role & Disease Slide 2 Diversity of Protists A. CharacteristicsCharacteristics B. Structure and FunctionStructure and Function C. Modes of Nutrition. Modes of Nutrition Click Click Slide 3 A. Characteristics 1. Eukaryotic (have a nucleus) 2. Unicellular, multicellular, or colonial (groups) 3. Most move_ Slide 4 B. Structure and Function 1. Extremely diverse a. very complex cell structure b. perform all the functions of other eukaryotes 2. Grouped by type of nutrition_ Click Slide 5 C. Modes of Nutrition 1. Protozoans (animal-like) a. are consumers b. classified by how they move_ Click Slide 6 2. Slime molds (fungus-like) a. consumers- decomposers b. live in cool damp places c. feed on bacteria & decaying plant matter d. have a unique life cycle_ Click Slide 7 3. Algae (plant-like) a. are producers b. can be unicellular or multicellular c. make up plankton communities d. can be classified by color_ Click Slide 8 THE END Slide 9 Protozoans A. Zooflagellates B. Sarcodinians C. Ciliaphorans D. Apicomplexans Click Slide 10 1. Zooflagellates move by one or more flagella 2. Giardia a. contains 2 nuclei and lack mitochondria b. believed to be closely related to prokaryotes_ A. Zooflagellates Click Slide 11 3. Trypanosoma a. causes sleeping sickness_ Slide 12 1. Sarcodinians move by extensions of the cytoplasm called pseudopodia_ B. Sarcodinians Click Slide 13 2. Amoeba a. causes amoebic dysentery_ Click Slide 14 3. Forams a. have porous shells made of calcium carbonate b. shell buildup forms limestone_ Click Slide 15 4. Radiolarians_ Click Slide 16 1. Move by hair-like extensions called cilia 2. Paramecium a. sweep food into body by cilia_ C. Ciliates Click Slide 17 Conjugation in Paramecium Slide 18 Conjugation ParameciaBinary fission Slide 19 3. Stentor_ Slide 20 4. Stylonychia_ Slide 21 1. Have no way of movement a. act as parasites_ D. Apicomplexans (Sporozoa) sporozoites merozoites Slide 22 2. Plasmodium a. causes malaria_ Slide 23 THE END Slide 24 Slime Molds A. Plasmodial Slime Molds B. Cellular Slime Molds C. Water Molds & Mildews Slide 25 A. Plasmodial Slime Molds 1.Plasmodial slime molds feed as a single mass of cytoplasm-plasmodium 2. When food and water supplies are low it reproduces by a fruiting body-sporangia 3. Meiosis produces haploid spores_ Click Slide 26 Slide 27 Slide 28 B. Cellular Slime Molds 1. Cellular slime molds feed as individual amoeba-like cells 2. When food and water supplies are low it reproduces a. forms a slug-like colony b. then fruiting body 3. Dictyostelium 3 stages: individual, colony, spore_ Click Slide 29 C. Water Molds & Mildews 1. Water molds decompose dead organisms in water a. some are parasites b. unicellular or thin branching filaments c. sexual reproduction 2. Downy mildews are spread by the wind a. Phytophthera infestans responsible for the Irish potato famine -clones Water molds & downy mildew more closely related to algae_ Click Slide 30 THE END Slide 31 Algae A. Dinoflagellates B. Diatoms C. Euglenoids D. Seaweeds Slide 32 A. Dinoflagellates 1. Dinoflagellates a. have two flagella b. cell wall made of cellulose c. causes red tide 2. Some can produce light_ Click Slide 33 B. Diatoms 1. Diatoms contain cell walls made of glass a. gritty, used in toothpaste and cleansers_ Click Slide 34 C. Euglenoids 1. Euglenoids a. photosynthesize and absorb food b. lack cell wall c. eyespot helps them find light_ Click Slide 35 D. Seaweeds 1. Seaweeds are large multicellular marine algae 2. Green algae a. are believed to be the closest relatives to plants b. volvox live in colonies c. spirogyra has spiral chloroplasts_ Click Slide 36 Slide 37 Slide 38 Slide 39 3. Red algae a. contain pigments that allow them to capture light in deep water_ Slide 40 Slide 41 4. Brown algae a. giant kelp can reach up to 50 meters in length_ Click Slide 42 THE END Slide 43 Ecological Roles & Disease A. Ecological Role B. Disease ClickClickClick Slide 44 A. Ecological Role 1. Provide habitat for marine life 2. Act as a major food source in the water_ Slide 45 3. Form symbiotic relationships that can help others_ Click Slide 46 B. Disease 1. Giardia- diarrhea 2. Trypanosoma- blood diseases 3. Dinoflagellates- red tide_ Click Slide 47 4. Amoeba- amoebic dysentery 5. Plasmodium- malaria_ Slide 48 THE END Slide 49 Diversity of Protists A. Origin of Eukaryotes B. Characteristics C. Structure and Function D. Modes of Nutrition Slide 50 C. Structure and Function 1. Extremely diverse a. very complex cell structure b. perform all the functions of other eukaryotes Slide 51 Protozoans A. Zooflagellates B. Sarcodinians C. Ciliaphorans D. Apicomplexans Slide 52 1. Sarcodinians move by extensions of the cytoplasm (pseudopodia) B. Sarcodinians Slide 53 3. Forams a. have porous shells made of calcium carbonate b. shell buildup forms limestone Slide 54 3. Forams a. have porous shells made of calcium carbonate b. shell buildup forms limestone Slide 55 4. Radiolarians Slide 56 Slide 57 Slide 58 A. Plasmodial Slime Molds 1. Plasmodial slime molds feed as a single mass of cytoplasm 2. When food and water supplies are low it reproduces by a fruiting body Slide 59 A. Plasmodial Slime Molds 1. Plasmodial slime molds feed as a single mass of cytoplasm 2. When food and water supplies are low it reproduces by a fruiting body Slide 60 B. Cellular Slime Molds 1. Cellular slime molds feed as individual amoeba-like cells 2. When food and water supplies are low it reproduces a. forms a slug-like colony b. then fruiting body Slide 61 C. Water Molds & Mildews 1. Water molds decompose dead organisms in water a. some are parasites 2. Downy mildews are spread by the wind a. responsible for the Irish potato famine Slide 62 C. Water Molds & Mildews 1. Water molds decompose dead organisms in water a. some are parasites 2. Downy mildews are spread by the wind a. responsible for the Irish potato famine Slide 63 A. Dinoflagellates 1. Dinoflagellates a. have two flagella b. cell wall made of cellulose c. causes red tide 2. Some can produce light_ Slide 64 B. Diatoms 1. Diatoms contain cell walls made of glass a. gritty, used in toothpaste and cleansers Slide 65 B. Diatoms 1. Diatoms contain cell walls made of glass a. gritty, used in toothpaste and cleansers Slide 66 B. Diatoms 1. Diatoms contain cell walls made of glass a. gritty, used in toothpaste and cleansers Slide 67 C. Euglenoids 1. Euglenoids a. photosynthesize and absorb food b. lack cell wall c. eyespot helps them find light Slide 68 D. Seaweeds 1. Seaweeds are large multicellular marine algae 2. Green algae a. are believed to be the closest relatives to plants b. volvox live in colonies c. spirogyra has spiral chloroplasts Slide 69 4. Brown algae a. giant kelp can reach up to 50 meters in length Slide 70 Ecological Roles & Disease A. Ecological Role B. Disease Slide 71 3. Form symbiotic relationships that can help others Slide 72 B. Disease 1. Giardia- diarrhea 2. Trypanosoma- blood diseases 3. Dinoflagellates- red tide

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