Biology Lecture 10 - IntroductiontoCells Chapter6 CellTheory

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Introduction to Cells Chapter 6
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Cell Theory All living organisms are made up of cells The cell is the structural and functional unit of all living organisms All cells come from pre-existing cells
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Common Features of Cells: Plasma Membrane Boundary of the cell Would find polar amino acids in the hydrophilic region of the protein Inter-cellular communication Regulate what goes in and out Phospholipid bilayer Hydrophilic region of protein Hydrophobic region of protein
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Common Features of Cells: Cytosol Plasma membrane Contain cytosol and cytoplasm Store their hereditary information in DNA Ribosomes rRNA and protein sight of protein synthesis Must obtain energy from raw materials Small!
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Common Features of Cells: Cells are Small Measurements 1 centimeter (cm) = 10 - 2 meter (m) = 0.4 inch 1 millimeter (mm) = 10 –3 m 1 micrometer (µm) = 10 –3 mm = 10 –6 m 1 nanometer (nm) = 10 –3 μ m = 10 –9 m 1 m 0.1 nm 10 m 0.1 m 1 cm 1 mm 100 µm 10 µ m 1 µ m 100 nm 10 nm 1 nm Length of some nerve and muscle cells Chicken egg Frog egg Most plant and Animal cells Smallest bacteria Viruses Ribosomes Proteins Lipids Small molecules Atoms Nucleus Most bacteria Mitochondrion Unaided eye Light Microscope Electron microscope Human height
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This note was uploaded on 10/14/2008 for the course BIO 311C taught by Professor Satasivian during the Fall '08 term at University of Texas at Austin.

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Biology Lecture 10 - IntroductiontoCells Chapter6 CellTheory

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