My membrane has a sophisticated recognition system. Each of us carries an identification tag, recognized by other cell membranes. Any foreigner or intruder is simply chased away from our individual colonies. Imagine what would happen if we tolerated strangers. A hair cell might wander into my area and hair would soon sprout from your eyes. Warts might start growing in your kidney, liver cells on your eyelids. The membrane also seems to have communications system to talk to other cells. How it functions I don’t know - enzymes again, may be? Anyway, if you take a heart apart, separating it into individual cells, those cells will pulse at random but soon they will be beating in unison again!! Somehow the word gets around.
Tags: Cell, role of membrane