process.
Translation.
During translation, the cell uses information from messenger RNA to produce proteins.
Messenger RNA (or mRNA) is vital to cell reproduction, and during cell division - it's primary role is to match with transfer RNA (tRNA) on the ribosome, in order to create amino acids, and thus proteins.
Messenger RNA is important for protein creation because it carries molecules which contain "data" or information - a coded sequence that acts as a recipe for creating proteins.
Interestingly, all cells contain this mRNA data, but the genetic information which the cell choses to activate is different based on its role.
For example, brain cells activate the sequence of data that creates neurotransmitters, whereas muscle cells flood themselves with protein to create muscle fibre.