Aug. 22(intro to cell cell theory)
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Aug. 22(intro to cell cell theory)

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    Aug. 22(intro to cell cell theory) Aug. 22(intro to cell cell theory) Presentation Transcript

    • Biology I Mr. Nettles
    • Agenda- Monday, August 22, 2011
      • Review Quiz – 10 min
      • Warm Up – 5 min
      • Daily Lesson – 15 min
      • “ Name That Guy” – 25 min
      • Wrap Up – 5 min
    • Warm-Up
      • Within the next five minutes, write down as much as you know about cells.
    • Today’s Objectives
      • I will define the words cell, multicellular, unicellular .
      • I will identify the scientist who contributed to the cell theory.
      • I will articulate the three principals of the cell theory.
    • Exploring the Cell and Cell Theory
    • What are cells?
      • Cells are the basic unit of life .
      • The cell theory grew from the work and research of many scientists.
      Who was involved?
      • More was learned about cells as microscopes improved over the years
      What did they use?
      • Used light microscopes to look at plant tissue
      • Noticed that a piece of dead cork had tiny chambers
      • Called them cells because they looked like the cells of a monastery
      Robert Hooke Hooke's Microscope   Hooke's drawing of Cork Cells
    • Anton van Leeuwenhoek (LAY-vuhn-hook)
      • One of first people to use a microscope to study living things from nature
      • Able to see things that no one had seen before
      • First person to see the tiny organisms living in pond water
      • Matthias Schleiden (SHLY-dun)
        • All plants are made of cells
      • Theodor Schwann
        • All animals are made of cells
      • Rudolf Virchow
        • Looked at how cells reproduce
        • Cells come from cells that already exist
      Other Important Scientists
      • A theory is a well tested hypothesis that can explain a broad range of observations .
      • The cell theory applies to all living things BIG and small and has three main principals .
      • Cells can provide a lot of information about living things .
      These scientists’ studies led to the development of the cell theory!
    • Three Principles of the Cell Theory
    • Principle # 1
      • All organisms are made of one or more cells.
        • Some organisms are made up of one cell or unicellular
        • Others are multicellular or made up of many cells
        • The cell is the most basic unit of life .
      Principle # 2
    • Principle # 3
      • All existing cells are produced by other living cells .
    • Name that Guy
    • Procedure
      • Read a brief paragraph of each scientist and underline key information .
      • Form teams of two and discuss each scientist .
      • As a team, come up with a one sentence summary of what each scientist contributed to our understanding of cells.
      • Each team shares their summary of each scientist with the class.
      • Play “Name that Guy” (Quiz, Quiz, Trade style)