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A & P I-Lab 5

The Cell:Transport Mech. and Cell permeability

Rate of diffusion is determined by? 1. Size of molecule 2. Tempature 3. The medium (what they travel thru)
High to Low is the way to go High to low is the way to go :-)
Molecular motion..... Reflects the kinetic energy of molecules. It's random and erratic like ME....lol
Velocity of molecular movement... is lower in larger molecules and increase with increase temp.
Hypertonic if it contains more non-penetrating solutes particles then the interior of the cell.
Hypotonic if it contains fewer nonpenetrating solute particles.
Difusion is the movement of molecules from a region of their higher concentration to a region of their lower concentration. ****It's driving force is KINETIC EVERY of the molecules themselves*****
Created by: doublewiggles