What is the function of the Golgi apparatus in eukaryotic cells?

The Golgi apparatus is a stack of flattened membranous sacs located in the cytoplasm of eukaryotic cells. It plays a crucial role in processing and sorting newly synthesized proteins and lipids that are delivered to it from the endoplasmic reticulum (ER).

The Golgi apparatus modifies these molecules by adding or removing specific chemical groups, such as carbohydrates or phosphate groups. It also sorts the molecules according to their destination within the cell, and then packages them into vesicles for transport to their final locations.