4.3 Osmosis Flashcards
1
Q
What is osmosis
A
The net movement of water from an area of higher water potential to an area of lower water potential through a selectively permeable membrane
2
Q
What is a solution
A
Any substance that is dissolved in a solvent e.g water.
3
Q
What is water potential
A
The pressure created by water molecules.
Units: kiloPascals (kPa)
Created by water molecules
Under standard conditions of temperature and pressure = 25C and 100kPa
4
Q
What is the water potential of pure water
A
0