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Transport in Plant vascular tissues - Coggle Diagram
Transport in Plant vascular tissues
Xylem
Transports
Water
Solutes
MInerals
Unidirectional
One way transport
Function
Transpiration
Evaporation of water from plant surface
Stem
Leaf
Factors increase rate
Increased temperature
Increases stomata on underside of leaf
#
Light intensity
#
High wind
Sunken stomata
Reduces transpiration
Adaptation
Root hairs
Absorb water
Osmosis moves water in xylem
Root --> Stem --> Leaf in transpiration stream
Cohesion forces between water molecules
Increase SA
Structure
Dead
Impermeable to water
Lignin support in walls
Position
Variable
Root
Stem
Shoot
Phloem
#
Transports
Sugars
Glucose
Sucrose
Amino Acids
Bidirectional
Strcuture
Living cells
Perforations
Sieve tubes
Function
Translocation
No forces
Active transport from source --> sink
Glucose --> sucrose
Moves against conic gradient
Travel through stem tube
Away from companion cells