Bio: Lab 6 - Diffusion & Osmosis

Differences Between
 
Created Feb 21, 2012
by
rartsch
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Side ASide B
Diffusion
Molecules (solutes) move through solutions from areas of high concentration to areas of low...
Density's effect on Diffusion?
Dense slows diffusion (agar vs. water)More molecules to get through
Pheynolphthalein
Reacts with Base PH turning PINKCannot pass through membrane because it is POLAR
Iodine
Reacts with StarchPasses through membrane because it is Non-Polar
NaOH
Turns Phenyolphthalein pinkPasses through membrane because it is Non-Polar
Starch
Reacts with IodineDoesn't pass through membrane because it is Polar
Water Potential
Combined effects of concentration and pressure that affect the flow of water.  Water will...
Hypertonic Solution
High molecule concentration of solutes.  Water flows TO this.
Hypotonic Solution
Low molecular concentration of solutes.  Water flows AWAY from this.
Plasmolysis
Shrinking cytoplasm of a plant cell due to diffusion of water out of a cell and into a hypertonic...
Isotonic Solution
Evenly distributed molecule concentration of solutes.  Water has even flow in/out.


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