BISC 3166 Chapter Notes - Chapter 5: Microtubule, Sodium-Glucose Transport Proteins, Serous Membrane
Document Summary
Exam 1: osmotic equilibrium- fluid concentrations are equal on the two sides of the cell membrane. Chapter 5: membrane dynamics (ecf and icf: electrical disequilibrium- inside of the cell is slightly more negative than outside due to ions, osmosis- movement of water across a membrane in response to a solute concentration. When the cell has a higher concentration of non-penetrating solutes than the solution: hypertonic- shrinking. When the cell has a lower concentration of non-penetrating solutes than the solution. If the concentration of non-penetrating solutes is the same in the cell and the solution: non-penetrating solutes- those that cannot cross the cell membrane. Tonicity only depends on these types of solutes. Transport processes: bulk flow- general form of biological transport. Pressure gradient causes fluid to flow from regions of high pressure to lower pressure: fluids- liquids that flow; molecules are compressible in space.
