The cell membrane and the associated transport proteins found in the membrane are responsible for regulating the movement of hundreds, if not thousands, of different types of molecules into and out of the cell.
Among the gases emitted when fossil fuels are burned, one of the most significant is carbon dioxide, a gas that traps heat in the earth's atmosphere. Over the last 150 years, burning fossil fuels has resulted in more than a 25 percent increase in the amount of carbon dioxide in our atmosphere.
Fossil fuels are made of carbon from dead plants, which sank to the bottom of swamps during the Carboniferous Period, turning into fossil fuels. Fossil fuels contain carbon â¦ because the dead plants that decayed were once part of the carbon cycle, so they consist of carbon.