The Na –glucose symport system of intestinal epithelial cellscouples the \\"downhill\\" transport of two Na ions into the cell tothe \\"uphill\\" transport of glucose, pumping glucose into the cellagainst its concentration gradient. If the Na concentration outsidethe cell ([Na ]out) is 153 mM and that inside the cell ([Na ]in) is19.0 mM, and the cell potential is -49.0 mV (inside negative),calculate the maximum ratio of [glucose]in to [glucose]out thatcould theoretically be produced if the energy coupling were 100%efficient. Assume the temperature is 37 °C.
