<prompt> Fireflies produce light due to -NADHGTPATPPhosphocreatinine  <response>: Bioluminescence is light produced by a chemical reaction within an organism.It requires a combination of 4 different ingredients. The light is produced through a chemical reaction involving Luciferin which is the substrate, Luciferase the enzyme, ATP and oxygen.The basic reaction sequence is: The luciferase catalyzes the oxidation of luciferin into oxyluciferin. In the process, light is emitted. 