Cell Membrane and Membrane Transport - Cell Membrane and what it does for the cell Phospholipid Bilayer Synonyms Plasma Membrane Cell Membrane

Cell Membrane and Membrane Transport - Cell Membrane and...

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Cell Membrane and what it does for the cell. Phospholipid Bilayer Synonyms Plasma Membrane
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Cell Membrane Phospholipid Bilayer Membrane up close Hydrophobic • Hydro • Phobic Repels water Hydrophilic • Hydro • Philic Loves water Phospholipid Up Close
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Insane in the Membrane – things on the membrane Carbohydrate Chain – acts like an identification tag for the cell Protein Channels – used to transport molecules in and out of the cell Proteins – transmit and receive signals to other cells
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Types of Types of Transport Transport Across Cell Across Cell Membranes Membranes Transport through membranes 2 ways Passive transport: movement of substances across a membrane Does not use energy
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Examples: Diffusion, Osmosis, Facilitated Diffusion Active transport : movement of molecules (or larger particles) through the cell membrane Uses energy Examples: Na+/K+ Pump, Endocytosis, Exocytosis Diffusion Diffusion Molecules move from area of HIGH to LOW HIGH to LOW concentration NO NO energy required
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  • Fall '15
  • Eric Martin
  • cells

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