Membrane proteins are among the most important proteins biologically because they allow cells to communicate with their environm
ents. In humans, they determine whether the immune system recognizes the cell as foreign or not and they are the targets of most pharmaceuticals. In all organisms, membrane proteins are responsible for other functions as well. One function determines when and if cell division takes place. That is
One function determines when and if cell division takes place. That is activation of growth hormones. When these hormones start forming, that is when the cell is going to be divided.
i would write about a well economically developed country like " USA, China, Japan or Germany" Vs a badly developed country like "Fiji , Peru , South Africa" its easy to research these places :)
