In the Firefly, Light is Emitted When

Question

In the firefly, light is emitted when
A) ATP combines with luciferin, forming luciferyl-AMP.
B) released nitric oxide blocks the mitochondria's use of oxygen.
C) the electron-excited product of O2and luciferyl-AMP returns to its ground state.
D) luciferase is activated by oxygen.

Accepted Answer

The light in fireflies is produced when the electron-excited product of O2 and luciferyl-AMP returns to its ground state, releasing energy in the form of light.