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Protists

Explore the diverse world of protists in the "junk drawer" kingdom, ranging from single-celled to multicellular organisms with a nucleus. Learn about animal-like, plant-like, and fungus-like protists and their unique characteristics. Discover protozoans with pseudopods, cilia, flagella, and even sporozoans. Delve into the realm of plant-like algae and fungus-like protists that consume food and reproduce using spores. Unravel the fascinating world of these often overlooked but essential organisms.

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Protists

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  1. Protists

  2. Protist Kingdom • The protist kingdom is sometimes called the “junk drawer” kingdom because it is filled with organisms that don’t fit easily into other kingdoms. • Some protists have one cell and some are many cells • All protists have a nucleus • Can you find my nucleus?

  3. Three Types of Protists • Because protists vary, scientists have proposed three ways of grouping protists. • The 3 different types: • Animal-like protists • Plant-like protists • Fungus-like protists

  4. Animal-like Protistscalled protozoans How are they similar to animals? • They are able to move around and they must consume food. (They cannot make their own food) How are they different to animals? • They have only one cell

  5. Protozoans With Pseudopods • Pseudopods are temporary bulges of the cell membrane that help them move. • Ex: Amoebas

  6. See Pseudopods in action… • http://www.biologycorner.com/lesson-plans/phyla/kingdom-protista/ • http://www.biology-resources.com/biology-videos-protista.html (Amoeba feeds & Amoeba in motion)

  7. Protozoans With Cilia • Cilia are like thin hairs that move in a wavelike pattern. • Cilia move organisms by acting like tiny oars. • Ex: Paramecium

  8. See Protozoans with Cilia in action… • http://www.biology-resources.com/biology-videos-protista.html (Paramecium eating yeast)

  9. Other Protozoans • Some protozoans use flagella for movement. • Ex: Euglena (you-glee-nah)

  10. See Flagella in action… http://www.biology-resources.com/biology-videos-protista.html (flagella & cilia)

  11. Sporozoans • Sporozoans are parasites. • Parasites are organisms who live on or in another organism and harm that organism. • Hosts are the organisms to which the parasites live.

  12. Plantlike Protists • Most plantlike protists are called algae.

  13. Fungus-like Protists • Fungus-like protists must consume food, and use spores to reproduce. • Spores are tiny cells that are able to grow into a new organism

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