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Plant Transport Systems (Dicotyledonae (Two cotyledons, Reticulate…
Plant Transport Systems
Dicotyledonae
Two cotyledons
Reticulate venation
Taproot
2.4 or 5 petals
Monocotyledonae
Fibrous root system
One cotyledon
Parallel venation
3 petals
Xylem
Dead
Passive
Only travels up
Supported by lignin
Schlerenchyma
Thick walled cells
Phloem
Transport of sugars
Composed of living cells
Perforated walls
Transpiration
The evaporation of water from the stomata of leaves
Transpiration pull
Capilarity
Very narrow tube
Adhesion
Force between water particles and cellulose walls of the xylem
Cohesion
Force between water particles
Root pressure
Water diffuses into root hair via osmosis