In cell biology, a<unk> is a relatively small and enclosed compartment, separated from the cytosol by at least one lipid bilayer. If there is only one lipid bilayer, they are called unilamellar<unk> ; otherwise they are called multilamellar.<unk>  store, transport, or digest cellular products and waste. This biomembrane enclosing the<unk> is similar to that of the plasma membrane. Because it is separated from the cytosol, the intravesicular environment can be made to be different from the cytosolic environment. <unk>  are a basic tool of the cell for organizing metabolism, transport, enzyme storage, as well as being chemical reaction chambers. Many<unk>  are made in the Golgi apparatus, but also in the endoplasmic reticulum, or are made from parts of the plasma membrane.
Vesicle 
Cuticle
Lumen 
Ligament
Clavicle
Climbing fiber
Sponge
Venule