Investigating permeability

Subdecks (2)

Cards (21)

  • What can be investigated in a lab?
    The permeability of the cell membrane
  • 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