Large quantities of proteins modified by the Golgi apparatus exit the cell through the process of exocytosis.
Exocytosis is a type of bulk and active transport in which substances (such as proteins and hormones) are moved from within a cell to the exterior of the cell through an energy-dependent process. Exocytosis allows the transport of large amount of molecules. In this process, membrane enclosed vesicles that contains cellular substances are moved to the cell membrane. The vesicles merge with the cell membrane, and their contents are released to the external part of the cell.
