Phagocytosis (cell eating).
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   Lysosomes digest (hydrolyze) materials taken into the cell and recycle
   intracellular materials.
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   Molecules  can  be  engulfed  by  infolding  of  the  plasma membrane,
   yielding a food vacuole.
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   The   food  vacuole  then  fuses  with  a  lysosome  for  digestion  -
   phagocytosis.