Bulk movement

• endocytosis and exocytosis are types of active transport that move large quantities of large material into ( endo ) and out (exo) of the cell
• Vesicles move bulk material (like insulin ) — these membrane bound organelles easily fuse with the plasma membrane and can separate by pinching off
• Phagocytosis is endocytosis where cells engulf a solid target particle like a pathogen , membrane forms around it to produce a phagosome where material is digested
• pinocytosis is endocytosis which moves liquid and small dissolved matter into the cell