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Ss Chapter 9
 

Ss Chapter 9

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    Ss Chapter 9 Ss Chapter 9 Presentation Transcript

    • Chapter 9 Cells GEE Science Summer Remediation Mr. Nash Donnie Bickham Middle School Room 204
    • Origins of Life
      • Two main ideas:
        • Creationism
        • Evolution
      Pg.169
    • Origins of Life
      • Creationism
        • Life was created by a greater being or God.
        • Because of religious implications not commonly taught in public schools.
      Pg. 169
    • Origins of Life
      • Evolution
        • All life evolved from the same beginnings of chemicals to cells to organisms.
      Pg. 169
    • THE CELL
      • The cell is the structural and functional unit of all organisms.
      • Cells have many small structures called organelles.
      • Cell Theory states that all living things are made of cells and that all cells come from other living cells of the same kind.
      Pg. 170
    • THE CELL
      • There are two basic types of cells.
        • Prokaryotic
        • Eukaryotic
      Pg. 170
    • Prokaryotic Cells
      • Do not have a true nucleus.
      • Do not have an organized membrane surrounding the genetic material
      • Do not have membrane bound organelles.
      • Example:
        • Bacteria
      Pg.170
    • Eukaryotic Cells
      • Have a true nucleus surrounded by a nuclear membrane.
      • Many membrane bound organelles.
      • Examples:
        • Plant & Animal Cells
      • Plant cells contain cell walls and plastids that animal cells do not.
      Pg170.
    • Organelles of the Cell
      • Nucleus
      • Endoplasmic Reticulum (ER)
      • Ribosomes
      • Mitochondria
      • Plastids
        • Plant Cells Only
      • Golgi Bodies
      • Lysosomes
      • Vacuoles
      • Microfilaments
      • Microtubules
      • Cilia & Flagella
      • Centrioles
        • Animal Cells Only
      • Cell Wall
      • Cell Membrane
      • Cytoplasm
      • Nucleolus
      Pg.171
    • THE CELL
      • Some organisms are unicellular.
        • Meaning they have only one cell.
        • Bacteria and Amoebas
      • Some organisms are multicellular.
        • Meaning they have many cells working together to carry out life.
      Pg.172
    • Multicellular Organization
      • Cell
      • Tissue
      • Organ
      • Organ System
      • Organism
      Pg. 172