How to prepare for your annual encounter with confusion. Daylight Saving Time ends Sunday at 2 a.m., which means that weâre all going to spend a few minutes scratching our heads trying to figure out whether weâre gaining or losing an hour of sleep. Save yourself the trouble and let TIME break it down for you.
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).
Because of this interaction, integral membrane proteins can usually only be removed from the membrane by the use of detergents that disrupt the hydrophobic interactions of the bilayer. Functionally, the presence of these proteins imparts to the membrane specific functions.In the example below the relationship of the bacterial phototraping pigment, bacteriorhodopsin, and the phospholipid bilayer is illustrated. In this case the integral membrane protein spans the phospholipid bilayer seven times.ecause of this interaction, integral membrane proteins can usually only be removed from the membrane by the use of detergents that disrupt the hydrophobic interactions of the bilayer. Functionally, the presence of these proteins imparts to the membrane specific functions.