What two compounds are combined by fireflies to emit light?

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Multiple Choice

What two compounds are combined by fireflies to emit light?

Explanation:
Firefly light comes from a substrate–enzyme reaction inside specialized light-producing cells. The light-emitting substrate, luciferin, is oxidized by the enzyme luciferase in the presence of ATP and oxygen, releasing photons that give the glow. So the two compounds involved are luciferin and luciferase. The other options don’t fit because peroxidase, chlorophyll, photoprotein, and GFP are not the firefly’s light-producing pair.

Firefly light comes from a substrate–enzyme reaction inside specialized light-producing cells. The light-emitting substrate, luciferin, is oxidized by the enzyme luciferase in the presence of ATP and oxygen, releasing photons that give the glow. So the two compounds involved are luciferin and luciferase. The other options don’t fit because peroxidase, chlorophyll, photoprotein, and GFP are not the firefly’s light-producing pair.

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