1 / 5

Water potential

Water potential . Water potential = solute potential + pressure potential. Pressure potential . A force that resists water flow due to a container (cell) being full and not wanting to expand any more. Cell walls of plant cells are important in this regard. Solute potential .

maire
Télécharger la présentation

Water potential

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Water potential Water potential = solute potential + pressure potential

  2. Pressure potential • A force that resists water flow due to a container (cell) being full and not wanting to expand any more. Cell walls of plant cells are important in this regard.

  3. Solute potential • Solute potential = - i M R T • i = the number of pieces the solute breaks into in the water • R = a constant (.0821) • T = temperature • M = concentration of the solution • NOTE: The negative is important

  4. Negative • As solute potential is more negative with increased solute concentration, the water will move from high to low water potential. • A high concentration of solute leads to a more negative (lower) water potential.

  5. Quiz on lab • http://www.phschool.com/science/biology_place/biocoach/biomembrane1/induce.html • http://www.phschool.com/science/biology_place/labbench/lab1/analysis.html • http://www.phschool.com/science/biology_place/labbench/lab1/quiz.html

More Related