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Protists

Protists. October 31, 2012. Protist Chart. A protist is… (write down the stuff in blue in your science notebook). Protists belong to the Kingdom Protista, which includes mostly single-celled organisms that do not fit into the other kingdoms . Characteristics of Protists:

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Protists

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  1. Protists October 31, 2012

  2. Protist Chart

  3. A protist is…(write down the stuff in blue in your science notebook) • 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)

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

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

  6. 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

  7. 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

  8. Euglena • Characteristics of both plants & animals • Has chloroplasts to produce food through photosynthesis (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

  9. Volvox • A type of algae • Actually form large spherical (like a ball) colonies of single-celled organisms • AS MANY AS 50,000 in one colony! • Although they are all individual organisms, they work together to act like one multicellular organism • Can digest food (heterotroph) as well as produce their own food through photosynthesis (autotroph) • Have flagellafor movement • http://www.youtube.com/watch?v=He9FSeGRi3A&feature=related

  10. Test Corrections…Due WED! • Please make corrections on your test in a different color ink. • Turn it in for 10 additional points on your test. • I will give students a chance to retake the test in class. • Once again, it is due on WEDNESDAY.

  11. 3-2-1 Ticket out the Door • In your science notebook (remember…I am checking on Friday) please write down the following: 01/30/12 3 Things you Learned Today 2 Things you are still confused about 1 Thing you would like to know more about

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