Lateral transport in roots.
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<Li> Root  hairs  absorb water and minerals, which move along the walls
comprising the apoplast.
<Li> Minerals  and  water that cross the plasma membranes of root hairs
enter the symplast.
<Li> Along  the  apoplast  some water and minerals are transported into
the cytosols of cells and then move via the symplast.
<Li> The Casparian strip, a belt of waxy material, allows only minerals
in  the  symplast  to  pass into the vascular cylinder through the
plasma membrane of endodermal cells.
<Li> Cells  in  the  vascular  cylinder  transport  water  and minerals
throughout the plant.
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   Review:  <A ClAsS=MID Href="../../../med/Vid/Campbell8e/36_Animations/36_12TransportInRoots_A.swf" oNClick="popurlt('../../../../med/Vid/Campbell8e/36_Animations/36_12TransportInRoots_A.swf');txtcolor('root_transport1','gray');return false;" Id=root_transport1><iMg sRc="/images/shockwave.gif" aLt='' boRDer=0></A>
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