Here's why:
* Ribosomes are the protein synthesis factories of the cell. They translate the genetic code from messenger RNA (mRNA) into a chain of amino acids, which then folds into a functional protein.
* Cells that need to produce a lot of protein will have more ribosomes. This is because they need to translate more mRNA into proteins quickly.
* Ribosomes can be found free-floating in the cytoplasm or attached to the endoplasmic reticulum (ER). Cells that produce proteins for export often have a large amount of rough ER, which is studded with ribosomes.
While other organelles like the Golgi apparatus and the endoplasmic reticulum play important roles in protein processing and packaging, the ribosome is the central organelle for the actual synthesis of proteins.
