IMED1001 Study Guide - Final Guide: Osmotic Pressure, Osmotic Concentration, Reflection Coefficient
Document Summary
Calculate osmolarity and to have a quantitative idea of the equivalent hydrostatic pressure resulting from a given osmotic gradient. Illustrate the importance of membrane permeability to solutes in determining their osmotic effects. That the movement of water across a membrane will be from the solution with the lowest osmolarity (highest water concentration) To the solution with the highest osmolarity (lowest water concentration). The movement of water in response to an osmolarity difference. Can be viewed as equivalent to the water being driven across the membrane by a hydrostatic pressure. Describes the equivalent hydrostatic pressure for a given osmolality difference across a membrane: Osmotic pressure difference (mm of hg) = rt ----------------- (4) (where is the total osmolality difference calculated by taking into account all dissolved solutes and their dissociation) 1 osmole/l difference across a membrane is equivalent to about 22. 4. Of hydrostatic pressure driving water across the membrane! Osmotic forces are very large and can cause drastic.
