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.
The plasma membrane, also called the cell membrane or phospholipid bilayer, is the sack that surrounds cells. Homeostasis is a state of balanced equilibrium, where everything is running smoothly. The plasma membrane maintains homeostasis by keeping cell contents in and foreign material out, and by providing controlled avenues for the transportation of fuel, fluid and waste.