We saw in Chapter 15 that a voltage gradient, also called an electric potential, exists across the plasma membrane of all cells. The potential across the plasma membrane of large cells can be measured with a microelectrode inserted inside the cell and a reference electrode placed in the extracellular fluid.
A production company is responsible for the development and filming of a specific production or media broadcast. In entertainment, the production process begins with the development of a specific project.
Definition of production for English Language Learners. : 1  the process of making or growing something for sale or use. : 2  the process of making something naturally. : 3  the process of making a play, movie, television show, record, etc.