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DAMAGE  TO THE PLASMA MEMBRANE BY ANTIMICROBIALS The plasma membrane is vital to the survival of the bacterial cell. Some chemical disinfectants  act by damaging the plasma membrane. This includes aldohols and quaternary ammoniums. In  addition, polymixin antibiotics also act on the plasma membrane. Before discussing movement across the plasma membrane, we need to briefly review solutions.  A solution consists of a dissolving medium, called the solvent, and one or more dissolved  substances, called the solutes. In biological solutions, the solvent is water. In crossing cell  membranes, substances are moving from one solution to another.    MOVMENT OF MATERIALS ACROSS MEMBRANES Processes are divided according to whether or not they require energy. 1)  Passive processes ---- all share 2 major characteristics:  Do not require energy
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This note was uploaded on 01/23/2012 for the course MCB MCB2010 taught by Professor Smith during the Fall '09 term at Broward College.

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