biochem membrane transport; MalateAspartate shutt

The diagram below shows some transporters in the membrane of a hypothetical cell. The concentrations of Cl- and glucose on each side of the membrane are given, in addition to the pH. The membrane potential is 30 mV and the temperature is 25 °C. -The ΔG for transport of glucose through the uniport into the cell is __________. Do not use a calculator. - positive, Answering this question requires the independent analysis of each part of the equation for the free energy of transport: where the constants R = 8.314 J/mol K and F = 96,500 J/molV. Temperature needs to be in units of Kelvin, so 273 to convert 25 °C to 298 K. The first term is dependent on concentration of the ion/molecule where C2 is the final concentration and C1 is initial concentration. When molecules/ions move down the concentration gradient (from high to low concentration), this is favorable and the first term will have a negative sign. In this case, glucose moves into the cell, C1 = 1.15 and mM C2 = 5.35 mM. This is against the concentration gradient and therefore the first term will be positive. The second term (ZFΔΨ) takes into acc