Connecticut's 5th Congressional District is a congressional district in the U.S. state of Connecticut.
102 Membrane Structure and Function LECTURE NOTES The plasma membrane is the boundary that separates the living cell from its nonliving surroundings. Itmakes life possible by its ability to discriminate in its chemical exchanges with the environment.
For example, plasma membrane proteins carry out functions as diverse as ferrying nutrients across the plasma membrane, receiving chemical signals from outside the cell, translating chemical signals into intracellular action, and sometimes anchoring the cell in a particular location (Figure 4).