root pressure Flashcards
1
Q
what is root pressure?
A
root pressure is a pushing force caused by water entering the xylen at the roots, due to the continual absorption of water at root hair cells
2
Q
how does root pressure work?
A
ions are absorbed by active transport into its cell sap, lowering the water potential. water molecules move by osmosis to balance the water potential. however, it is only a minor contributing force since it is too weak to overcome the gravitational forces
