The Golgi apparatus sorts and changes proteins within the cell. Proteins that are made by other organelles within the cell are then modified by the golgi apparatus for whatever job they need to perform in the cell and then released to perform that job.
Carbohydrates are created and released by the Golgi apparatus. These carbohydrate molecules then provide energy necessary for the cell to carry on life functions. The Golgi apparatus may also use carbohydrates that are absorbed by the cell and modify them for a specific function within the cell.
The Golgi apparatus codes lipids, or fat molecules, before releasing them into the cell. After the lipids are coded they are transported throughout the cell to the sites that utilize them or outside of the cell into the blood stream.
The Golgi apparatus transports, codes, changes and stores several other molecules within the cell. It makes proteoglycans which make up the majority of the extracellular matrix which is a gel like substance within the cell. It also makes and attaches enzymes to other molecules. Enzymes help necessary cellular reactions get started and finish.