Endoplasmic Reticulum

Imagine trying to navigate through a crowded airport with your luggage to catch a connecting flight. The endoplasmic reticulum (ER) in a cell functions like the airport's network of moving walkways, helping passengers (proteins) efficiently reach their gates (destinations within the cell). Just as these walkways streamline the process of moving people and their bags through the bustling terminal, the ER's membranes facilitate the transport and processing of proteins within the cell, ensuring they get to the right place at the right time.
Practice Version

Endoplasmic Reticulum: The membranes in a cell's cytoplasm that move proteins endoplasmic reticulum. The endoplasmic reticulum is like a transportation system inside a cell that helps move and make proteins and other important substances.