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Chapter 22 Protist

Chapter 22 Protist. Protist Diversity Protozoan: Animal-like Protists 22.2 Algae: Plant-like Protists What are Algae? Phyla of Algae Reproductive strategies of Algae Fungus-like Protists. Chapter 22 Protist continued. 22.3 Different Kinds of Fungus like Protists Slime Molds

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Chapter 22 Protist

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  1. Chapter 22 Protist • Protist Diversity • Protozoan: Animal-like Protists • 22.2 Algae: Plant-like Protists • What are Algae? • Phyla of Algae • Reproductive strategies of Algae Fungus-like Protists

  2. Chapter 22 Protist continued • 22.3 Different Kinds of Fungus like Protists • Slime Molds • Water Molds and Downy Mildews

  3. Protist Diversity • Most Diverse of all five kingdoms • size varies from microns to over 100 meters • 200,000 species • All are Eukaryotes

  4. Protozoan: Animal-like Protists • Unicellular heterotrophs • classified by their method of movement • cilia • flagella • pseudopodia • non-motile

  5. Animal - like Amoebas • Phylum sarcodina • No wall outside cell membrane • move by forming pseudopodia • live in water or wet patches • have problem with Osmosis • Contractile vacuoles are Use to eliminate waste

  6. Amoebas pictures

  7. Amoebas with Shells • Hard Shell Amoeba

  8. Amoeba feeding

  9. Ciliated Protist Paramecium

  10. Paramecium morphology

  11. Paramecium feeding

  12. Flagellated Protist

  13. Flagellates: Protozoans that move with Flagella • Animal-like because they move and aren’t able to make their own food • Some have a single flagella and others have two • Are aquatic / marine single cell organisms

  14. Non-Motile Protist • Giardia- cause of Malaria

  15. Reproductive strategies of Sarcodines

  16. Contractile Vacuoles Vacuole filled with waste products Emptied vacuole waste material

  17. 22.2 Algae: Plant-like Protists • Plant like protist that utilize Photosynthesis • Some are unicellular • some are multicellular • All are Aquatic / Marine

  18. What are Algae? • Six different groups • Unicellular • Euglenoid • Diatoms • Dinoflagellates • Multicellular • red algae • Brown algae • Green algae

  19. Euglenoid

  20. Euglenoid Protist • They are unicellular • Are heterotrophs • Utilize Photosynthesis to make their food • Can absorb food during dark periods • Have and eyespot to help find light • single flagella to swim

  21. Euglena- picture 2

  22. Euglena diagram

  23. Diatoms- protist

  24. Diatom - assorted picture

  25. Diatom facts • Have two halves to their hard shells which are made of silica • undergo both asexual and sexual reproductions • Vital part of the food chain in oceans

  26. Diatom - reproduction

  27. Dinoflagellates pictures

  28. Dinoflagellate info • Unicellular in size • Cell wall is made of thick plates • Move by using two flagella • One species causes Red tide

  29. Red algae Picture

  30. Red Algae information • Another name for this group is red seaweed • acts like and looks plants - attaches itself to the bottom and has a long stem like structure with what looks like leaves. • Deep ocean location because they can absorb blue colors ( most penetrating light)

  31. Brown Algae - pictue

  32. Brown Algae picture 2

  33. Brown Algae information • Another name for this group is Brown seaweed ( kelp) • loves cold water • uses a thallus to attach itself to rocks • no real stem or roots • Agar ( gelleton ) comes from this protist

  34. Green Algae - picture

  35. Green Algae picture 2

  36. Green Algae information • Most are fresh water organism • some are unicellular/ multicellular • Reproduce by using both sexual and asexual reproduction • Use Alternating generation

  37. Reproductive strategies of Algae

  38. Alternating Generation -diagram

  39. 22.3 Fungus-like Protists • Colorfull - ranging in color ( red, blue, violet to yellow • live in cool moist environments • live off rotting organic matter • are motile

  40. Different Kinds of Funguslike Protists • There are three phyla of fungus like molds • slime molds • plasmodial • cellular • water molds

  41. Slime Molds- plasmodial

  42. Slime mold - cellular

  43. Water Molds and Downy Mildews

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