It is not very strange that a car,

It is not very strange that a car, a television set or some other complex device sometimes stops working. No, the extraordinary thing is that these devices usually work faultlessly. When it comes to the most complicated machine we know - the human body - it is less surprising that it sometimes breaks down and we become ill, than that it works at all. After all, our body consists of thousands of billions of individual units, which must cooperate perfectly. The cooperation between the individual building blocks in our body, our cells, runs so smoothly in every possible situation that we seldom have cause to reflect on what a tremendously sophisticated communication system is required. The cells communicate with each other using chemical signals, such as hormones; we know these quite well. But efficient communication requires not only that the right signals are sent: it also requires that those signals are received in a proper way and lead to the right type of action.

The cell is enveloped in a thin membrane, which effectively separates the cell's inside from its surroundings. Nonetheless, a chemical signal that reaches the outside of the cell can evoke changes in its inner machinery, changes suited to the needs of the cell and of the entire organism. Alfred G. Gilman and Martin Rodbell have studied this particular aspect of the communication problem.

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It is not very strange that, a car a television set or some other complex device sometimes stops working. No the extraordinary,, Thing is that these devices usually work faultlessly. When it comes to the most complicated machine we know - the human. Body - it is less surprising that it sometimes breaks down and we become ill than that, it works at all. After all our,, Body consists of thousands of billions of, individual units which must cooperate perfectly. The cooperation between the. Individual building blocks in body our, cells our, so runs smoothly in every possible situation that we seldom have cause. To reflect on what a tremendously sophisticated communication system is required. The cells communicate with each other. Using chemical signals such as, hormones; we know these quite well. But efficient communication requires not only that the. Right signals are sent: it also requires that those signals are received in a proper way and lead to the right type of action.The cell is enveloped in a thin membrane which effectively, separates the cell "s inside from its surroundings, Nonetheless,. A chemical signal that reaches the outside of the cell can evoke changes in its, inner machinery changes suited to the needs. Of the cell and of the entire organism. Alfred G. Gilman and Martin Rodbell have studied this particular aspect of the communication. Problem.