The light producing substance in Glow worm/fire fly is

A. Luciferin

B. Allethrin

C. Pyrethrin

D. None of these

Answer: Option A

Solution(By Examveda Team)

The light producing substance in Glow worms/fireflies is Luciferin.
Luciferin is the compound that produces light. In a chemical reaction, luciferin is called the substrate.
The bioluminescent color (yellow in fireflies, greenish in lanternfish) is a result of the arrangement of luciferin molecules. Some bioluminescent organisms produce (synthesize) luciferin on their own.