Pregled posta

Adresa bloga: https://blog.dnevnik.hr/bags

Marketing

Why do fireflies glow?


louis vuitton outlet Firefly chemical reactions the body to enable them to light, called bioluminescence process. Involvement in a case of luciferase, the cells of oxygen and calcium, energy storage molecule adenosine triphosphate (ATP) and fluorescein binding, Firefly will be able to shine. LED lights will generate a lot of heat, but Firefly will not, it sends a "cold light." Light-emitting organ as if it as hot like light bulbs, light emitting process in this insect can not survive.

Oxygen available, the light organ to play a role; oxygen available, the emitting area to darken. Light organ is one such manipulation of light by controlling the oxygen in the starting and ending. Insects, no lungs, they are called micro trachea through a complex series of successive thinning of the pipe, the oxygen delivery to body cells from in vitro. Control the amount of micro-tracheal muscles of the oxygen out of the work of a relatively slow, so why fireflies light so quickly has been a mystery.

Recently, however, researchers found that nitric oxide on this issue has played an important role. Oxygen is used for the cell mitochondria to produce energy, the mitochondria within the cell are all the available oxygen fixed. In order to induce the mitochondrial release of oxygen, the brain will be issued firefly signals produced nitric oxide, and nitric oxide can replace the position of oxygen in mitochondria. Then, move to the light-emitting organs of oxygen to the chemical reaction in the use of light. However, due to the rapid decomposition of NO in mitochondria, the oxygen was quickly re-bound to live, light has come to an end.

Firefly light for many reasons. Their bodies can produce defensive steroids, they emit light pulses that they do not make good insect eaters; many adult fireflies flash their similar pattern of specific, allowing different members of the opposite sex. Several studies have shown that female fireflies flash based on the specific mode of male characteristics similar to choose a spouse. Now show that the two types of fireflies flash in the flash faster and higher intensity of the male more attractive to female fireflies.


Post je objavljen 10.01.2011. u 06:44 sati.