What chemical(s) are involved in a firefly to cause it to light up?
Answer:
it is a protien called luciferin in the body of fireflies . oxidation of luceriferin is a photochemical reaction which emits light .
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Light production in fireflies is due to a chemical reaction that occurs in specialized light-emitting organs, usually on the lower abdomen. The enzyme luciferase acts on luciferin in this organ to stimulate light emission. This reaction is of scientific interest. Genes coding for these substances have been inserted into many different organisms (see “Applications” in Luciferase). Luciferase is also used in forensics, and the enzyme has medical uses.
For adult beetles, it is primarily used to locate other individuals of the same species for reproduction. Many species, especially in the genus Photinus (genus), are distinguished by the unique courtship flash patterns emitted by flying males in search of females. Photinus females generally do not fly, but give a flash response to males of their own species.
Bioluminescence is a very efficient process. 90 per cent of the firefly's energy is converted into light. By comparison, an incandescent electric bulb can convert only 10 percent of total energy into light, and the remainder is emitted as heat.
Luciferins. Their breakdown by the enzyme luciferase causes light to be emitted.
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