Final answer:
The functions of glycosylation, sulfation, and phosphorylation of proteins are primarily carried out by the Golgi apparatus.
Step-by-step explanation:
The functions of glycosylation, sulfation, and phosphorylation of proteins are primarily carried out by the Golgi apparatus.
The Golgi apparatus is a stack of flattened, sac-like structures that receives proteins and lipids from the endoplasmic reticulum (ER). It modifies and packages these molecules before sending them to their final destinations.
For example, proteins synthesized in the rough endoplasmic reticulum (RER) are transported to the Golgi apparatus, where they undergo various modifications, including glycosylation, sulfation, and phosphorylation. These modifications play crucial roles in protein function and targeting.