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Chemistry, 19.12.2019 00:31 doggielover36

Intestinal epithelial cells pump glucose into the cell against its concentration gradient using the na + – na+– glucose symporter. recall that the na + na+ concentration is significantly higher outside the cell than inside the cell. the symporter couples the "downhill" transport of two na + na+ ions into the cell to the "uphill" transport of glucose into the cell. if the na + na+ concentration outside the cell ( [ na + ] out ) ([na+]out) is 139 mm 139 mm and that inside the cell ( [ na + ] in ) ([na+]in) is 19.0 mm, 19.0 mm, and the cell potential is − 49.0 mv −49.0 mv (inside negative), calculate the maximum energy available for pumping a mole of glucose into the cell. assume the temperature is 37 °c.

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