Biology: Development, Plants & Environment

APOPLAST PATHWAY

SYMPLAST PATHWAY

VACUOLAR PATHWAY

Apoplast Pathway: Water is pulled by the attraction between water molecules across adjacent cell walls (the apoplast) from the root hair cell to the xylem

Symplast Pathway: Water moves down a concentration gradient through interconnected cytoplasm (the symplast) of the cells through the plasmodesmata(strands of cytoplasm which go through pores in cellulose cell walls).

Vacuolar Pathway: Water moves down a concentration gradient by osmosis across the vacuoles of the cellulose cells to the xylem.