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Transport in Plants

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The combination of root pressure, capillary action, and transpiration provides ... its form: The botanical term is pinnate.(This leaf is actually twice- or ... – PowerPoint PPT presentation

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Title: 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
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