The rough endoplasmic reticulum (RER) and the Golgi apparatus are involved in protein processing. Which of the following best describes their relationship?
1
Proteins synthesized in the Golgi apparatus are processed in the RER.
2
The RER synthesizes lipids that are then modified in the Golgi apparatus.
3
Proteins synthesized in the RER are transported to the Golgi apparatus for modification.
4
The Golgi apparatus is involved in protein synthesis, while the RER modifies these proteins.