Describe the structure and function of ribosomes.

Ribosomes are the cellular component that makes proteins from all amino acids. Ribosomes are made from a complex of RNA and proteins. The number of ribosomes in a cell depends on the activity of the cell. Ribosomes are freely suspended in the cytoplasm or attached to the endoplasmic reticulum, forming a coarse endoplasmic reticulum. On average, a mammalian cell can have about 10 million ribosomes.
Ribosomes present in prokaryotes function differently in protein production than ribosomes in eukaryotic organisms. The ribosomes of bacteria, archaea, and eukaryotes are very different from each other in structure and RNA sequences.