lecture27F06 - Cells and Water By the end of this lecture...

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Unformatted text preview: Cells and Water By the end of this lecture you should be able to… Discuss some of the relevant properties of water. Concepts and terms: cohesion, adhesion, hydrogen bond, acid/base, pH Discuss water movement through membranes. Concepts and terms: aquaporins, intrinsic membrane proteins Describe and differentiate diffusion and osmosis Concepts and terms: hyper-, hypotonic Contrast plant and animal cells with regard to their water relations. Concepts and terms: cell wall, vacuole Discuss the driving force causing water to move in plants. Concepts and terms: water potential, osmotic potential, pressure potential Assigned Readings: Concept 6.2, 6.5, Chapter 3 Cohesion Adhesion Surface tension High specific heat Latent heat of vaporization Solution Dissociation Hydrophobic/hydrophilic Important properties of water: An acid increases the H + concentration in solution: HCl H + + Cl- A base reduces the H + in solution: NH 3 + H + NH 4 NaOH Na + + OH- pH = -log [H + ] Very small molecules that are...
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This note was uploaded on 04/07/2008 for the course IB 201 taught by Professor Hughes/berlocher during the Spring '07 term at University of Illinois at Urbana–Champaign.

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lecture27F06 - Cells and Water By the end of this lecture...

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