Water Potential Flashcards
1
Q
What is water potential?
A
-measure of the free energy of water molecules and is the tendency for water to move
2
Q
What is water potential measured in?
A
Kilopascals
3
Q
Pure water has a potential of…
A
-zero, because there is no tendency for water molecules to move into pure water
4
Q
The higher the concentration of water molecules…
A
-water molecules have a high potential energy because they are free to move
5
Q
What are water molecules like in a solution
A
-molecules weakly bound to the solute s fewer are free to move, low potential energy
6
Q
External water molecules
A
-molecules with higher potential energy will move down an energy gradient to the lower potential energy
7
Q
Water potential equation
A
water potential of cell=pressure potential+solute potential
