osmosis innit Flashcards
what’s an example of a partially permeable membrane
a membrane around a cell
what is osmosis
the movement of water molecules from a region of higher water potential to a region of lower water potential through a partially permeable membrane
what is it exactly that applies pressure to the membrane
water molecules colliding with the membranes
what is the name of the pressure that colliding water molecules cause
water potential
what is the unit of measure for water potential
kilopascals
when does osmosis stop
when equilibrium has been met on both sides of the membrane
what do water molecules do when equilibrium is met
they move across the membrane,though the same number of molecules move the opposite way maintining equilibrium
what has the highest possible water potential
pure water
why does pure water have the highest water potential
it has the highest possible concentration of water molecules
what is the meaurement in kPa for pure water and what does this mean
0kPa,this means water potenital of anything else is in the negatives
which solution will begin to move across the membrane
the one with the highest water potential
