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Exploring Kingdom Protista: The World of Diverse Microorganisms

Learn about the fascinating world of Kingdom Protista, the first group of organisms with a nucleus. Dive into the complexities of protists, from single-celled amoebas to multicellular kelp, and their ecological roles. Discover how heterotrophic and autotrophic protists function, including symbiotic relationships and dangerous parasitic species.

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Exploring Kingdom Protista: The World of Diverse Microorganisms

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  1. What have we studied so far? Domains & Kingdoms

  2. Kingdom Protista... First group of organisms to have a nucleus (eukaryotic). They are not animals, plants, or fungus

  3. Kingdom Protista... Amoeba Most are unicellular Euglena Paramecium

  4. Kingdom Protista... A few are multicellular Kelp Brown Algae

  5. Kingdom Protista... Protists have no specialized systems. They do everything within a single cell. Paramecium eating Red yeast Amoeba eating paramecium

  6. Types of Protists Protists are Grouped by how they get energy. They can be • Heterotrophic • Autotrophic • Symbiotic

  7. Heterotrophic Protists eat other organisms. They are classified by how they move:

  8. Flagellates move with a whip-like tail called a flagella.

  9. Ciliates move with many cilia or hairs

  10. Dangerous Ameba Utube video

  11. Amoebas change their shape making cytoplasmic projections called Pseudopods. Amoeba – performing phagocytosis (engulfing food) Similar to our white blood cells

  12. Amoeba phagocytosis

  13. Passive protists don’t move at all, they depend on air or water to carry them.

  14. A second type of protist are the Symbiotic protists. They form a relationship with another organism.

  15. Some are mutualistic- both organisms are benefited. Coral(an animal) and Zooxanthellae(a protist) help each other to survive

  16. Trichonympha protists live in the intestines of termites, helping them digest wood.

  17. Some protists are parasitic and are responsible for some of the world’s most deadly diseases! Trypanosoma- causes African Sleeping Sickness

  18. Protozoan Diseases Malaria • Severe flu-like symptoms to coma and death, • carried by the mosquito

  19. Protozoan Diseases Giardia Cryptosporidium Amoebic dysentery • Fever, stomach cramping. Dehydration • Water-borne pathogens

  20. Naegleria fowleri, the brain-eating amoeba that causes primary amebic meningoencephalitis

  21. Autotrophic Protists Unicellular algae and multicellular algae Get their energy by photosynthesis Produce half of the world’s oxygen

  22. Ecological Roles- photosynthetic protists play an important role on earth They are the base of most aquatic food chains

  23. Provide energy for coral Some protists live inside coral and provide food for it’s survival

  24. Giant Kelp Forests

  25. Provide shelter Autotrophic protists help recycle sewage

  26. Algal Bloom- protist grow to enormous numbers and then disrupt the normal ecosystem—reduce amount of oxygen Red Tide

  27. (Algin and Carrageenan)

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