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Chapter 7.1
 

Chapter 7.1

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    Chapter 7.1 Chapter 7.1 Presentation Transcript

    • Section 1: Introduction to Cells
      • Preview
      • Bellringer
      • Key Ideas
      • The Discovery of Cells
      • Looking at Cells
      • Cell Features
      • Summary
    • Bellringer
      • After viewing the list of items on the board, work with a partner and make two new lists: those items on the list comprised of cells and those items not comprised of cells.
      • Give a rationale for each answer.
    • Key Ideas
      • How were cells discovered?
      • Why does cell shape vary?
      • What enables eukaryotes to perform more specialized functions than prokaryotes?
    • The Discovery of Cells
      • ALL living things are made of cells
        • Cell Theory
    • Visual Concept: Cell Theory
    • Looking at Cells, continued
      • All substances that enter or leave a cell must cross the surface of the cell.
      • Bigger surface area = better exchange
    • Cell Features
      • All cells have a cell membrane, cytoplasm, ribosomes, and DNA.
      • The cell membrane is the outer layer that covers a cell’s surface
      • The cytoplasm is the region of the cell within the cell membrane, made of a fluid called the cytosol.
    • Features of Prokaryotic and Eukaryotic Cells
    • Cell Features, continued
      • Prokaryotic Cells
      • A prokaryote is an organism made of a single prokaryotic cell.
      • Prokaryotic cells do not have a nucleus.
      • For millions of years, prokaryotes were the only organisms on Earth.
    • Cell Features, continued
      • Features of Eukaryotic Cells
      • A eukaryote is an organism made up of one or more eukaryotic cells.
      • The DNA of a eukaryotic cell is found in the nucleus .
    • Visual Concept: Comparing Prokaryotes and Eukaryotes
    • Comparing Prokaryotes and Eukaryotes