Lab 6-Diffusion, Osmosis, & Dialysis Flashcards
The tendency of solvents to flow from an area of high solute concentration to an area of low solute concentration across a semi permeable membrane.
Diffusion
Solute concentration is similar to that inside the cell
Isotonic
Solute concentration is higher than that inside the cell
Hypertonic
Solute concentration is lower than that inside the cell
Hypotonic
A process in which a semi-permeable membrane is used to separate large from small molecules in solution.
Dialysis
% change =
[(Final weight- initial weight) / initial weight] x 100
Surface area to mass ratio causes:
Variance
Point where equal inside and outside
Point of isotonicity
A barrier that has holes large enough to allow certain molecules to pass, but small enough to block the passage of large molecules.
Semi-permeable membrane