osmosis Flashcards
(7 cards)
1
Q
what is osmosis?
A
the movement of water molecules from a high water potential to a low water potential across a partially permeable membrane
2
Q
what is water potential?
A
the pressure of water on the membrane
3
Q
what is the symbol for water potential
A
ψ
4
Q
what does pure water have a water potential of?
A
● 0 (high)
● solutions always have a -ve water potential (lower)
5
Q
what is an isotonic solution?
A
solutions of equal solute conc
6
Q
what is a hypotonic solution?
A
solution with lower solute conc
7
Q
what is a hypertonic solution?
A
solution with higher solute conc
