1. The activity of ProP increases with osmotic pressure in cells and proteoliposomes. 2. The osmotic pressure of ocean water is about 27 ocean salt water. 3. The osmotic pressure is measured and used to calculate M _ n. 4. Both sodium and chloride ions affect the osmotic pressure of the solution. 5. A fall in osmotic pressure occurs in nephrotic syndrome and liver failure. 6. These differences generate an osmotic pressure , which generates a force between these objects. 7. Reduced osmotic pressure is due to a lower concentration of plasma albumin protein. 8. Hydrostatic and osmotic pressure gradients facilitate filtration across a semipermeable membrane. 9. :You may want to read the article Osmotic Pressure , as well as Tonicity. 10. This creates osmotic pressure and draws water into the CSF space.