Latest news from New Sharon, IA collected exclusively by city-data.com from local newspapers, TV, and radio stations. Ancestries: German (27.3%), Irish (16.3%), English (13.6%), Dutch (10.5%), United States (8.2%), Scottish (2.6%). Current Local Time: CST time zone. Incorporated in 1871.
The______ portion of the cell membrane is responsible for the isolating function of the membrane, whereas the ____________ portion regulates exchange and communication with the environment. Lipid; protein. Phospholipids spontaneously form a bilayer in an aqueous solution.
Recall that membranes have two major components: phospholipids arranged in a bilayer, and membrane proteins. Click Here for a more elaborate picture of a cell membrane. One of the functions of membranes is to control what passes into and out of the cell. In this module you will review mechanisms of membrane transport. There are several different types of membrane transport, depending on the characteristics of the substance being transported and the direction of transport.