So when the molecule increases to a certain amount, which says something about the number of cells, it locks down into that receptor and information comes into the cells that tells the cells to turn on this collective behavior of making light.
Cando a molécula aumenta  ata certa cantidade --o que ten relación co número de células-- encaixa no receptor e a información entra nas células para dicirlle a estas que activen o comportamento colectivo de facer luz.