Question

In certain types of archaea that live in extreme environments, chloride ions are important for several bacterial functions. If a hot spring bacterium living in 80°C water maintains an intracellular concentration of chloride at 0.35 M while the extracellular concentration is 100 mM, what is the free energy of Cl− moving into the cell if the bacteria has a typical membrane potential of −80 mV? Which direction will the ions go?

Answer 1

0.35M 100x103M = 3 ,5 1x 96500 x(-0.0807)+8.3 14Λ mol.K x353K×In(3.5) =7720J +3677J -11397J 11.4kJ Gİs positive so Cl-ions will flow from inside to outsi de ofcell