Which cell organelle is concerned with cell secretions?

Golgi apparatus is the organelle in eukaryotic organisms which is concerned with cell secretions. Their whole structure is made up of membranes with some vesicles at the outside. Their main function is to transfer/movement of the molecules from either away from endoplasmic reticulum or towards it. They are highly involved in secretion of hormones, steroids and various other proteinaceous substances This process occur via formation of vesicles, that are of two types: endocytosis and exocytosis. At the end these vesicles fuse with the plasma membrane and release the continent outside the cell.