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Do Now

Do Now . W hat characteristics must an organism possess in order to be classified as living? All of the following are characteristics of living things EXCEPT A. Movement B. Made of cells C. Hunt for food D. Growth. Announcements. Quiz tomorrow over living vs. non-living

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Do Now

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  1. Do Now What characteristics must an organism possess in order to be classified as living? All of the following are characteristics of living things EXCEPT A. Movement B. Made of cells C. Hunt for food D. Growth

  2. Announcements • Quiz tomorrow over living vs. non-living • Ms.Lusk has Office 2010! • You know what that means? • NEW GRAPHICS!!!!!!!!!!

  3. Agenda • Making sense of this protistbusiness • Comparing and contrasting • Microscopin’… again!

  4. A protist is… • Protists belong to the Kingdom Protista, which includesmostlysingle-celled organisms that do not fit into the other kingdoms. Characteristics of Protists: • mostly unicellular, some are multicellular (algae) • most live in water (though some live in moist soil or even the human body) • ALL are eukaryotic (have a nucleus)

  5. How are they classified? Protista = the very first Classification of Protists: • how they obtain nutrition (How they eat!) • how they move

  6. We will be studying 4 types of protists: • Amoeba • Paramecium • Euglena • Volvox

  7. Amoeba • An amoeba Moves using “false feet” or pseudopodia • Eats food by surrounding and engulfing it • Does not make its own food (heterotroph) • Movie of an amoeba eating: http://www.youtube.com/watch?v=ojrkxmD6tT8 • Movie of an amoeba moving: http://www.youtube.com/watch?v=7pR7TNzJ_pA&feature=fvwp

  8. Paramecium • Moves using hair-like Cilia • Has two nuclei • Ingests through a mouth pore • Stores food in food vacuole • Releases waste through an anal pore • Heterotroph like the amoeba • Paramecium moving & eating: http://www.youtube.com/watch?v=zS0f82ZJtvk&feature=related

  9. Euglena • Characteristics of both plants & animals • Autotrophic • Has light sensitive eye spot • Can also surround & engulf food • Has whip-like flagellum for movement • Video of Euglena: http://www.youtube.com/watch?v=ZHZZKwrYm4g

  10. Volvox • Actually form large spherical colonies • work together to act like one multicellular organism • Can digest food (heterotroph) as well as produce their own food through photosynthesis (autotroph) • Have flagella for movement • http://www.youtube.com/watch?v=He9FSeGRi3A&feature=related

  11. Compare and contrast • Create a Venn Diagram or a T-chart and list out the similarities and differences between the two groups of Protists. • Yes I said two groups, you’ll need to group them.

  12. Back to the lab… If time!

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