osmosis

Cards (9)

  • The net movement of water particles from a high water potential to a low water potential through a partially permeable membrane
  • Plant cells have cell walls made up of cellulose fibers which prevent them from bursting when they take on too much water.
  • Water moves into cells by osmosis, increasing their volume until they burst or swell.
  • Osmotic pressure is the force that drives water molecules across a semi-permeable membrane.
  • Cells can also shrink if there is not enough water inside the cell, but this does not cause damage as it would with animal cells because plant cells do not have a nucleus that could be damaged by shrinking.
  • Osmotic pressure refers to the force exerted by dissolved molecules against the semipermeable membrane during osmosis.
  • Cells can only shrink if the water is removed from inside the cell.
  • When solute concentration increases, more solvent will move into the solution until equilibrium is reached.
  • Osmotic pressure refers to the force that drives water molecules across a semipermeable membrane from an area of higher concentration to one with lower concentration.