Digital Marketing is the pratice of promoting products and services using database-driven online distribution channels to reach consumers in a timely, relevant, personal and cost-effective manner. Broadband Internet, WiFi and phone Web access are also spurring growth worldwide.
The plasma membrane is an outer boundary and functional traffic-cop of every biological cell. Just like the outer layers of multicellular organisms, its primary function is to contain, protect and provide unit structure.
4.1. Plasma Membrane Structure and Function. 1  Introduction: plasma membrane is boundary of the cell that regulates the passage of molecules into and out of the cell, similar to a castle wall..1. Plasma Membrane Structure and Function. 1  Introduction: plasma membrane is boundary of the cell that regulates the passage of molecules into and out of the cell, similar to a castle wall.