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.
noun. The producer is in charge of financing a movie. The producer is in charge of financing a movie. The definition of a producer is someone who creates good and services or is in charge of coordinating all aspects of creating an entertainment performance.1  An example of producer is someone who is in charge of the financing of a play or movie.plural producers). ( 1 economics) An individual or organization that creates goods and services. 2  One who produces an artistic production like a CD, a theater production, a film, a TV program and so on. ( 3 biology) An organism that produces complex organic compounds from simple molecules and an external source of energy.