Notes.docx - Solution Tonicity Tonicity is a relative term...

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Solution Tonicity Tonicity is a relative term that describes the solute difference between solutions and determines the net direction of movement of water molecules (osmosis). There are three types of tonicity: 1. Hypertonic : A solution with a higher solute concentration than the solute concentration on the opposite side of the permeable membrane. 2. Hypotonic : A solution with a lower solute concentration than the solute concentration (i.e., a solution with a higher percentage of water than solute) on the opposite side of the permeable membrane. 3. Isotonic : A solution with equal solute concentrations on both sides of the permeable membrane Water Potential In osmosis, water flows from hypotonic solutions to hypertonic solutions, until they become isotonic. This underscores the concept of water potential . Biologists use this term to describe the tendency of water to leave one place in favor of another. Water
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