Protein synthesis is important because the proteins created during this process control the activities of the cells. Without these proteins, many of the processes in the body would fail or not work properly. The DNA in each cell holds the instructions on how to make the protein, which is why every cell in the body must have a copy of the DNA.
Protein is key to such reactions as metabolism, DNA replication and molecule transportation. They are also key in making sure the human body reacts properly to stimuli. Proteins do not exist for extended periods of time, which is why they need to constantly be recreated and taken in as part of a balanced diet. The proteins eventually degrade or are exported out of the cells. If the human body did not get enough protein then it would not be able to replicate DNA, which means that the body would not be able to heal itself, reproduce or grow as needed. Each protein has a unique amino acid sequence, which is given to it by the gene that encodes it. These sequences help determine what the protein will be used for inside the body. The protein that is not ingested through diet is synthesized through the process of translation.