f-m-w lectures
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| Cell Theory | all living things are composed of cells and new cells arise from pre-existing cells
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| cell size | 10-15 micro meters
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| cytoplasam | surrounded by cell membrane, all material between nucleus and cell surface
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| cytoplasm contains | fibers and cytosol
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| all cells have... | plasam membrane, cytoplasm, cytoskeleton, and organelles
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| fluid mosaic theory | way of describing the plasam membrane where protien molecules have a changing patern in the fluid phospholipid bilayer.
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| increases the membrane's stiffness | cholesterol
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| membrane protiens | protiens imbended in the plasma membrane that may or may not pass through entirely (intergral or peripheral)
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| channel protiens | create pores in membrane for passive transfer
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| carriers | involved in active binding and transport of substance across membrane
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| motor molecules | allow cellular movement
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| cell indentity markers | glycoprotiens are recognized by body in tissue transplants
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| cell adhesion | molecules necessary for normal groth in most cells
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| microvilli, cilia, flagella | extensions of the cell membrane
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| cilia | move objects over surface of cell (7-10um)
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| flagella | moves entire cell through fluid (20-200um)
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| Microvilli | smallest* increase surface are of cell membrane to increase absorption. *do NOT move
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| Organelles | carry out specialized metabolic tasks
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| Nucleus | site of DNA/RNA synthesis
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| Endoplasmic Reticulum | Synthesize lipids
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| Golgi Complex | synthesize carbohydrates
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| Exo | outward
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| Endo | inward
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| Mitochondria | systheize ATP
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| Ribosomes | synthesize protien *inside the walls of the Enoplasmic Reticulum
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| Veslce | bubble of plasma mebrane
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| Lysosomes | vesicles of membrane containing hydolytic digestive enzymes. produced by Golgi Complex
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| 2 things that have a double phospolipid bilayer | Mitochondria and nucleous
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| Centrioles | short cylinders of 9 groups of 3 microtubles that assist cell division
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| Cytoskeleton | helps to mainitain cell shape *formed from filamentous protien stuctures
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| Cytoskeleton includes ___ + ____ | microtubules and actin filaments
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| Diffusion | the random movement of molecules from an area of high concentration to an area of low concentration, until equal distribution is attained.
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