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Feb 7 th

Feb 7 th. You are in charge..of your own learning! I’m at home with a vomiting 3 year old, do not let me return tomorrow to find out any of you did not follow instructions. Follow my instructions and do so silently today.  Copy down the daily activity on the next slide into your notebook.

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Feb 7 th

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  1. Feb 7th • You are in charge..of your own learning! I’m at home with a vomiting 3 year old, do not let me return tomorrow to find out any of you did not follow instructions. Follow my instructions and do so silently today.  • Copy down the daily activity on the next slide into your notebook.

  2. Feb 7th • Turn in HW: Make 2 stacks on the table in the front • 1. Overview of Kingdom Protista Lab • 2. Protista Chart (we will grade this tomorrow) *sub has been instructed to collect these stacks near the beginning of the period. • Protista notes –chapter 20 ppt (we will be working on this Mon-Thursday, You will not finish today!!) • Take notes on the right hand side of your NB • Quiz will be postponed until I see you next!

  3. Protists The world of Protists: Animal-like Protists Plant-like Protists Fungus-like Protists

  4. Protist Diversity • 200,000 species come in different shapes, sizes, and colors • All are eukaryotes – have a nucleus and membrane-bound organelles

  5. Protozoans Animal-like Protists

  6. Protozoans • Unicellular – made up of one cell • Heterotrophs – they eat other organisms or dead organic matter • Classified by how they move

  7. Phyla of Protozoans Amoebas Flagellates Ciliates Sporazoans

  8. Amoebas: the blobs • No cell wall • Move using pseudopods – plasma extensions • Engulf bits of food by flowing around and over them

  9. Flagellates: the motorboats • Use a whip-like extension called a flagella to move • Some cause diseases

  10. Trichomonas foetus : cow disease

  11. Trichomonas vaginalis: an STD

  12. Ciliates: the hairy ones • Move beating tiny hairs called cilia

  13. Sporazoans: the parasite • Non-motile - Do not move • Live inside a host • One type causes malaria

  14. Malaria in red blood cells

  15. Pneumonia in aids patients

  16. Algae Plantlike Protists

  17. What are Algae? • Multicellular – made of more than one cell • Photosynthetic – make their own food • No roots, stems, or leaves • Each has chlorophylland other photosyntheticpigments

  18. Phyla of Algae Euglenoids Diatoms Dinoflagellates Red, Brown, & Green Algae

  19. Euglenoids: The Survivors • Aquatic • Move around like animals • Can ingest food from surroundings when light is not available

  20. Diatoms: The Golden Ones • Have shells made of silica (glass) • Photosynthetic pigment called carotenoids – give them a golden color

  21. Dinoflagellates: The Spinning Ones • Spin around using two flagella • Responsible for Red Tides • Create toxins that can kill animals and sometimes people

  22. Red Algae: The…uh…Red Ones (duh) • Seaweeds • Multicellular, marine organisms • Have red and blue pigments

  23. Brown Algae: The Brown Ones (You think?) • They have air bladdersto help them float at the surface – where the light is.

  24. Green Algae: Yeah, You Guessed it, The Green Ones • Most live in fresh water • Can be unicellular or multicellular • Live alone or in groups called colonies

  25. Fungus-like Protists

  26. Characteristics in Common • All form delicate, netlike structures on the surface of their food source • Obtain energy by decomposing organic material

  27. PhylaofFungus-like Protists Plasmodium Slime Molds Cellular Slime Molds Water Molds & Downy Mildews

  28. Slime Molds • Live in cool moist, shady places where they grow on damp, organic matter

  29. Plasmodium Slime Molds • Form plasmodium: a mass of cytoplasm that contains many diploid nuclei but no cell walls or membranes – its feeding stage • Creeps by amoeboid movement – 2.5 cm/hour

  30. Plasmodium continued… • May reach more than a meter in diameter • Form reproductive structures when surroundings dry up • Spores are dispersed by the wind and grow into new plasmodium

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