Here's a breakdown of its role:
* Receiving and Modifying: The Golgi apparatus receives proteins from the endoplasmic reticulum (ER) and modifies them. This can include adding sugars, lipids, or other molecules.
* Sorting and Packaging: The Golgi then sorts the proteins based on their destination. Some proteins will remain in the cell, while others are destined for secretion outside the cell.
* Transport Vesicles: Proteins destined for export are packaged into small membrane-bound sacs called transport vesicles. These vesicles bud off from the Golgi and move to the cell membrane, where they fuse and release their contents outside the cell.
Think of the Golgi apparatus as a post office for proteins – it sorts, labels, and ships them to their final destinations.
