06-2010-10 - A Tour of the Cell Chapter 6 s Objectives...

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A Tour of the Cell Chapter 6
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Objectives Distinguish between a prokaryotic and eukaryotic cell Describe the unique structures of a prokaryotic cell Describe the structural differences between plant and animal cells Describe the complex structural and functional interconnections among the organelles of the endomembrane system Describe the structure of the eukaryotic nucleus, mitochondrion and chloroplast
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Describe the surface structures of the cell that provide support, protection, and movement in, and communication with, the extracellular environment
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Introduction Cell is smallest functional unit of life cell theory: all organisms composed of cells all existing cells arise from pre-existing cells Common characteristics of all cells: cell contents surrounded by plasma membrane cytoplasm consists of semifluid matrix organelles are embedded in cytoplasm contain genes in the form of DNA
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Fundamental Features of Life Features of cells are characteristic of life cells are highly structured cell structure and function are related cell membranes separate the cell from the external environment each cell has DNA as the genetic material each cell carries out metabolism
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Cell Organization Two types of cells-prokaryotic and eukaryotic Prokaryotic: small lacks nucleus; DNA in nucleoid region cytoplasm surrounded by plasma membrane and outer cell wall flagella and pili may be present
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Cell Organization Eukaryotic Larger than prokaryotic cells complex internal structure with membranous and non- membranous organelles
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06-2010-10 - A Tour of the Cell Chapter 6 s Objectives...

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