Vesicle

· They are small self-contained, temporary compartments of membrane inside the cytoplasm.

· They are bound by a single membrane

· They are used to store and transport material around the cell.

· They are formed from other membranes around the cell, (such as the rough ER), and break away, transporting their goods to other membranes and fusing to them.

· They transport useful goods such as secretory or digestive materials, as well as enzymes, which may damage the cytoplasm if they were released.