Here's why:
* Modification: The Golgi apparatus receives proteins and lipids from the endoplasmic reticulum (ER) and modifies them by adding sugars, phosphates, or other molecules. This is important for their proper functioning and targeting.
* Storage: The Golgi can store proteins and lipids temporarily until they are needed.
* Routing: The Golgi sorts and packages proteins and lipids into vesicles that are then transported to their final destination, whether it be other organelles, the cell membrane, or outside the cell.
Think of the Golgi as the cell's "post office," receiving, processing, and sending packages to their correct addresses.