• Pharmaceutics

    Osmosis and Iso-tonic solutions

    Tonicity Tonicity is the measure of effective osmotic pressure gradient. In biology: how an extracellular solution can change the volume of a cell by affecting osmosis and it is directly correlates with the osmolarity of the solution. Osmosis If the solution of different concentration are separated by semi-permeable membrane, the solvent is move from the solution of lower solute concentration to the solution of higher solute concentration. Semi-permeable membrane The membrane with allow movement of solvent, but resist the passage of dissolved substances. There are three types of osmosis solution; Isotonic solution Hypertonic solution Hypotonic solution Iso-tonic solution An isotonic solution has the same osmolarity or same solute concentration. The…

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