Which organelle prevents proteins that have not reached their normal tertiary or quaternary structure from reaching the cell surface?

Question

Quizplus · Accepted Answer

The endoplasmic reticulum (ER) is responsible for the folding, modification, and transport of proteins. Before proteins are transported to the Golgi apparatus and eventually to their final destination, the ER checks to make sure that they have reached their proper tertiary or quaternary structure. If a protein has not properly folded, it will be retained in the ER and undergo further modifications until it has reached its proper structure. Therefore, the ER prevents proteins that have not reached their normal tertiary or quaternary structure from reaching the cell surface.

Which Organelle Prevents Proteins That Have Not Reached Their Normal