The rough endoplasmic reticulum
INCORRECT the protein component of the ribosomes are made in the cytosol. Only membrane and excreted proteins are made in rough ER
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The packaging site for ribosomes is the nucleolus, which is located within the nucleus of the cell. Here, ribosomal RNA (rRNA) is transcribed and ribosomal proteins are assembled to form ribosomal subunits that are then exported to the cytoplasm for further processing and assembly into functional ribosomes.
Two parts are made in nucleolus. They are fused in cytoplasm to protein synthesis
ribosomes
Protein synthesis, or translation, takes place at the site of ribosomes. Ribosomes read the genetic code from mRNA and assemble amino acids into a polypeptide chain, which eventually folds into a functional protein.
Ribosomes are responsible for making proteins in the cell. After the proteins are synthesized, they are often packaged and modified in the endoplasmic reticulum and Golgi apparatus before being distributed to their final destinations in the cell.
Rough Endoplasmic Reticulum(RER) is the site of protein synthesis ;while Ribosomes are the structures that synthesize the protein.
Ribosomes are the organelles that are the primary site of protein synthesis in a cell. They can be found either free-floating in the cytoplasm or attached to the endoplasmic reticulum. Ribosomes translate the genetic instructions from the mRNA into proteins.