Lecture 4 Flashcards
1
Q
what is diffusion
A
water movement during transpiration
2
Q
transpiration
A
evaporation of water mainly through the stomata of leaves
3
Q
where does bulk flow occur?
A
in leaf veins
4
Q
what side of a leaf is adaxial?
A
top
5
Q
what side of a leaf is abaxial?
A
bottom
6
Q
how does water travel from roots to shoots?
A
capillary action
7
Q
air-water interface when stomata is closed
A
low evaporation and condensation
8
Q
air-water interface when stomata is open
A
becomes curved, evaporation is higher than condensation
9
Q
where is H2O pulled to to minimize stretching?
A
the surface of the water
10
Q
what causes water to be pulled toward the evaporative surfaces?
A
change in water potential from outer cell walls back to the xylem
