The golgi apparatus is an organelle inside the cell membrane. There are various names for this apparatus: golgi body, golgi complex. The golgi apparatus is basically a stack of flattened vesicles that shape the protein into the correct form to do its functions. It receives proteins from the Rough Endoplasmic Reticulum (RER), which is dotted with ribosomes that translate mRNA into proteins. The proteins are then packaged into vesicles and shipped to the Golgi body. Usually, by this time, the protein's positive and negative bases, in addition to hydrophilic and hydrophobic sides, has already arranged the protein into secondary structure. The golgi body then proceeds to mold the protein into tertiary, and even quaternary structure. Quaternary structure is the only level of structure that is not mandatory for proteins to have. Hope this helps! :D
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