Transport in Plants

1
Transport in Plants 
Station 14

• The combination of root pressure, capillary
  action, and transpiration provides enough force
  to move water through the xylem tissue of even
  the largest plant.
• Capillary action water moves upward through
  narrow tubes against the force of gravity
  (adhesion and cohesion)
• contributes to the movement of
• water up the cells of xylem tissue

2
Food Transport
Station 14

• Phloem
• Movement from source (where sugars are produced
  by photosynthesis) in leaves to where sugars are
  used or stored
• When nutrients are pumped into or removed from
  the phloem system, the change in concentration
  causes a movement of fluid in that same
  direction. As a result, phloem is able to move
  nutrients in

3
Stem adaptations
Station 14
4
Leaves
Station 15
SIMPLE LEAVES Botanists have established the
ground plan for a leaf as consisting of a broad
blade, on a leaf stalk (petiole) and with two
broad places where the leaf joins the stem which
are called stipules. Some or all of these may be
missing.
Compound leaves The blade part separated into
smaller pieces.This Peltophorum leaf has the
leaflets coming off what would be the midrib of
the leaf blade. It is a little like a feather in
its form The botanical term is pinnate.(This
leaf is actually twice- or bipinnate because each
leaflet is divided into smaller pieces.)
5
Station 15
The Internal Structure of a Leaf