Cohesion Tension Theory Flashcards
1
Q
what is cohesion?
A
water molecules form hydrogen bonds between them.
The xylem is thin so hydrogen bonds are able to stay together which creates a continuous column of water through the plant.
2
Q
what is adhesion?
A
water molecules stick to the walls of the xylem.
3
Q
adhesion + column of water evaporating from leaves
A
creates tension in the xylem
causing constant movement of water entering xylem from roots
4
Q
A
