Red Blood Cell Permeability. Eric Duitsman Genevieve Roland. Plasma Membranes. As discussed in MCB 252, cells contain a phospholipid bilayer. It is amphipathic meaning it contains a hydrophilic and hydrophilic layer. Cells also contain internal plasma membranes. These membranes provide:
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In an isosomotic cell, the total pressures of the two solutions are equal ao there is no movement across the membrane. An isoosmotic solution contains 300 mOsm of solute regardless of penetrating or not. Hyperosomotic condition is when the solution within a cell has a greater osmotic pressure than its surrounding environment. This solution contains more than 300 mOsm of solute. In a hypoosmotic state, the cell has less osmotic pressure than the solution in the extracellular zone. This solution contains less than 300 mOsm of solute in the cell.
Intact – non- Concentrations on membrane Permeabilityhemolyzed
Lysed - hemolyzed