It is surrounded by a single membrane called the tonoplast.  Its storage variety is generally responsible for holding phenolics, acids, nitrogenous wastes, and anthocyanins away from the cytosol.  Its contractile variety is used to pump water out of the cell quickly and plays a role in the cell's turgor pressure.  Its food 
It is surrounded by a single membrane called the tonoplast.  Its storage variety is generally responsible for holding phenolics, acids, nitrogenous wastes, and anthocyanins away from the cytosol.  Its contractile variety is used to pump water out of the cell quickly and plays a role in the cell's turgor pressure.  Its food variety is responsible for phagocytosis.  Generally smaller in animal cells, plant cells usually contain one large version of this organelle.  FTP, identify this organelle that serves as a general repository for materials in cells.
It is surrounded by a single membrane called the tonoplast.  
vacuole