osmosis Flashcards
1
Q
definition of osmosis?
A
movement of free water particles from a high water potential to lower water potential over a permeable membrane down a concentration gradient
2
Q
dilute is?
A
high water potential
3
Q
concentrated is?
A
low water potential
4
Q
describe the xylem vessel?
A
solution only moves up and transports water and mineral ions
dead wall, ligin strengths walls
5
Q
describe a phloem vessel?
A
has comparison cells- keeps phloem alive
solution moves up and down
transports sucrose and amino acids
has sieve plates- to allow passing sugars
