Ribosome: a very large and complex enzymeplugin-autotooltip__default plugin-autotooltip_bigEnzyme: a macromolecule, usually a protein (but sometimes an RNA), that functions as a catalyst of some kind of biochemical reaction. formed from both proteinplugin-autotooltip__default plugin-autotooltip_bigProtein: a molecule that is formed by the translation of messenger RNAs (mRNAs). Functions that proteins provide are what usually give organisms their phenotypes. and rRNA subunits. Its primary function is to catalyze translationplugin-autotooltip__default plugin-autotooltip_bigProtein translation: the process of using an mRNA as a template to synthesize a protein based on the genetic code, using ribosomes..