LIFE SCIENCE

Detailed explanation-1: -The RER is also located near the Golgi apparatus, which transports, modifies, and packages proteins for delivery to targeted destinations. Many proteins that are synthesized in the RER are packaged into vesicles and transported to the Golgi apparatus.

Detailed explanation-2: -Exocystosis is the process of membrane transport that releases cellular contents outside of the cell. Here, a transport vesicle from the Golgi or elsewhere in the cell merges its membrane with the plasma membrane and releases its contents.

Detailed explanation-3: -The Golgi apparatus receives proteins and lipids (fats) from the rough endoplasmic reticulum. It modifies some of them and sorts, concentrates and packs them into sealed droplets called vesicles.

Detailed explanation-4: -The rough ER purpose is to produce proteins that will become part of the endomembrane system, the plasma membrane or to be secreted. The endomembrane system includes all membranes within the cell, such as the endoplasmic reticulum itself, the Golgi apparatus, lysosomes and vesicles.