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CHAPTER 9-1

CHAPTER 9-1. KINGDOM PROTISTA. A. WHAT ARE THEY? Page 230. Single or many celled - may live in colonies Live in moist or wet environments Eukaryotic Great variety Plant like (producers) Animal like (consumers) Fungi like (decomposers). B. Plant like protists. Algae

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CHAPTER 9-1

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  1. CHAPTER 9-1 KINGDOM PROTISTA

  2. A. WHAT ARE THEY? Page 230 • Single or many celled - may live in colonies • Live in moist or wet environments • Eukaryotic • Great variety • Plant like (producers) • Animal like (consumers) • Fungi like (decomposers)

  3. B. Plant like protists • Algae - One or many celled • Makes own food • Contains chlorophyll / chloroplasts • Grouped according to their pigments

  4. 1. Diatoms – phylum Chrysophytachryso = golden brown Diatom Video a) One celled b) photosynthetic c) stores food in the form of oil d) gold-brown pigment masks the green e) Their shells collect on the sea floor 1) used for road line reflection and toothpaste f) Made of silica (SiO2)– used in glass production

  5. 2. Dinoflagellates – phylum Pyrrophyta a) “fire algae” – red pigment b) 2 flagella - one moves the cell - one causes it to spin c) food stored as starch and oils d) food source for salt water organisms

  6. RED TIDE

  7. 3. Green Algae – phylum Chlorophyta a) 7,000 species – most diverse group of protists b) green pigment (photosynthesis) c) food stored in the form of starch d) lives in water, on tree trunks, decks, and other organisms e) one or many celled

  8. Take a look at these cool Green Algae SPIROGYRAVideo VOLVOXVideo Algae used as a bio-fuel source http://gmy.news.yahoo.com/v/13190450

  9. 4. Red Algae – phylum Rhodophytarhodo = red a) used for pudding and toothpaste (gives it its smooth texture) b) stores food as carbohydrates c) most are many celled d) Red pigment helpful in absorbing limited light in deep ocean depths.

  10. 5. Brown Algae – phylum Phaeophyta a) many celled b) Kelp c) used in ice cream and marshmallows d) produces a carb. Called “algin” e) used to make fertilizer f) home (shelter) to many aquatic animals

  11. UNDER SEA FOREST Kelp Video

  12. 6. Euglenas – phylum Euglenophyta a) Have both plant and animal characteristics b) Contains chloroplasts – makes sugar c) Get food when light is not present d) No cell walls e) strong flexible membrane that helps it change shape f) Use of flagella for movement g) Eye spot – responds to light…..Why? Euglena Video

  13. C. Animal Like Protists • Called protozoa • Live in water, soil, and other organisms • Many are parasites • Contain digestive vacuoles • 4 kinds • Sarcodines 3) Ciliates • Flagellates 4) Sporozoans -Classified by their method of…… MOVEMENT

  14. 1. Sarcodines - phylum Rizopodaex. Amoeba a) use of pseudopods for movement and feeding - “false foot” - extensions of the cytoplasm - kind of like endocytosis b) found in both salt and fresh water c) some found as parasites inside animals Amoeba Video

  15. 2. Flagellates phylum - Zoomastigina a) move by using flagella b) live in fresh water – some are parasites c) examples: - Trypanosoma causes African sleeping sickness. - Some live in termites and produce enzymes that allow termites to digest wood. This relationship is called……….. Mutualism

  16. 3. Ciliates – phylum Ciliophora Paramecium Video a) move using cilia b) example: Paramecium - 2 Nuclei: Macro (large) cell function Micro (small) reproduction c) feed on bacteria - oral groove - Food vacuole digests the food

  17. Ciliates continued d) Waste products removed through anal pore e) Contractile vacuole used to remove extra water from the cell ** Complex Body Structure

  18. 4. Sporozoans – phylum Sporozoa a) all are parasitic b) can’t move on their own c) some feed on the blood of humans and other animals Malaria Video

  19. SLIME MOLD The left photo (courtesy of Prof. I. K. Ross) shows the plasmodial stage of Stemonitis just before it formed sporangia. The right photo (courtesy of Turtox) shows the fully developed sporangia of Stemonitis.

  20. Slime molds are appearing in mulch. To me, they are beautiful with their intricate structure. However, most people think they look like scrambled eggs or dog vomit. They appear in several sizes and colors with no definite shape. Those in my mulch change on a daily basis from a bright yellow netting, to a tan powder, to a dark brown dried blob.

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