They are both types of requiring the use of energy by the

They are both types of requiring the use of energy by the cell and they are the opposite processes. Endocytosis is a type of active transport in which a cell takes in a macromolecule such as a protein or polysaccharide or a even another cell. In this process the engulfs the substance by pinching inward forming a vesicle around the substance which is brought into the cell. Exocytosis is a type of active transport in which a cell a cell expells a macromolecule such as a hormone or an enzyme or cellular waste. In this process the Golgi body packages the molecule into a vacuole which then fuses with the cell membrane spilling its contents into the area surrounding the cell. The following diagram represents endocytosis. The following diagram represents exocytosis in which a substance has been packaged within a vesicle by the Golgi body. The plasma membrane of the vesicle then fuses with the cell membrane and its contents are expelled.

Expert Help With This Assignment — On Your Terms