give 2 things that the permeability of cell membranes is affected by?
temperature
solvent concentration
what does increasing the temp increase?
membrane permeability
what increases membrane permeability?
increasing the temp
How can you investigate the effect of solvents on the permeability of the cell membranes?
surrounding cells in an increasing conc of a solvent (eg ALCOHOL) (EG ACETONE)increases membrane permeability because the solvent dissolves the lipids in the cell membrane, causing it to lose its structure
Why does surrounding cells in an increasing concentration of a solvent eg alcohol or aceton increase membrane permeability?
because the solvent dissolves the lipids in the cell membrane, causing it to lose its structure