Final answer:
The riboflavin coenzymes, such as FMN and FAD, are involved in oxidation and reduction functions in cellular metabolism, integral in the production of energy and the breakdown of nutrients.
Step-by-step explanation:
The riboflavin coenzymes have oxidation and reduction functions in cellular metabolism. Riboflavin, or vitamin B2, is a precursor for the coenzymes flavin mononucleotide (FMN) and flavin adenine dinucleotide (FAD), which are essential for the metabolism of carbohydrates, fats, and proteins. These coenzymes function in the body by facilitating oxidation-reduction reactions that help in the production of energy and the breakdown of nutrients. These reactions include the catalysis of the removal of hydrogen atoms and the transfer of electrons, often associated with the production and regulation of ATP, which is the energy currency of the cell.