 AKA “Plasma Membrane” or “Fluid Mosaic”.  Selectively permeable  Barrier  Protection.

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Presentation transcript:

 AKA “Plasma Membrane” or “Fluid Mosaic”

 Selectively permeable  Barrier  Protection

 Phospholipids (Bilayer)  Transport & Receptor Proteins  Some Carbohydrates and Cholesterol (fluidity)

 2 Types of Transport  Active- takes energy (ATP) & Protein -(Against Concentration Gradient)  Passive- No ATP needed (Down Concentration Gradient) -Diffusion (facilitated as well w/ protein) - Osmosis- diffusion of water

 Exocytosis- active removal of materials from cell (vesicle)  Endocytosis- active way to bring materials into cell (vesicle)

 Solvent- the liquid (H2O)  Solute- the substance being dissolved (Salt or Sugar)  Hypotonic- solution is lower concentration of solute  Hypertonic-solution is higher concentration of solute  Isotonic- concentration is equal

 2Zg 2Zg