image credit. golgi body can be seen in green.
The golgi apparatus golgi body, is the packaging centre of a cell. Transport vesicles travel to the golgi body, and the products are modified, stores and sent elsewhere. It is found extensively in cells specialised for secretion. It consists of membranous sacs called cisternae, and it separates the contents of these from the cytosol. There is a distinct structural polarity: membranes on each side differ in molecular composition. The golgi enzymes may also modify ER producs, and the golgi apparatus can manufacture polysaccharides, and refine other products in storage. Molecular identification tags such as phosphate groups are attached to vesicles, which are budded from the golgi bodies, allowing them to recognise their target.