Page 148 - The Miracle in the Cell Membrane
P. 148

The Miracle in the Cell Membrane



                        the cell mem brane. This move ment is like the turn ing of a lock
                        and is total ly com pat i ble with the data.   47

                        As the above quo ta tions express, the events tak ing
                     place in the cell mem bra ne's ion chan nels are not sim ple
                     indi vid u al mech a nisms. The entry and exit from the cell,
                     which we have exam ined only in fair ly gen er al terms,
                     show that the entire sys tem has been cre at ed as a whole.
                     It ben e fits the body only when all its com po nents are
                     oper at ing togeth er flaw less ly. Otherwise, life would not
                     be pos si ble at all.
                        The volt age-gate potas si um chan nels are a part of the
                     sig nal ing in the cell mem brane. Signaling pro teins have








                                   1- Channel  2- The channel opens and  3- The channel closes again
                                   is closed   Sodium enters inside the cell
                         Sodium
                        channel with
                        voltage-gate
                  The exterior                      Na +
                  of the cell

                  The interior
                  of the cell                        Na +
                            Region sen-  Voltage Gate
                            sitive to the                     Particle neutralizing the channel
                            voltage
                                            Particle neutralizing the channel
                   The structure and functions of the closed voltage sodium
                   channel:
                   Scientists recently discovered that the amino acids in the voltage preceptors do
                   not make simple back-and-forth motions, as they previously imagined, but act like
                   keys turning in a lock. The complex structure of the cell membrane, so difficult for
                   scientists to unravel, clearly reveals that there is no room for coincidence at the
                   molecular level.





                                              146
   143   144   145   146   147   148   149   150   151   152   153