Chloride-bicarbonate exchange in the urinary bladder of the turtle. Independence from sodium ion.
The rates of Cl- absorption and HCO3- secretion were not different in turtle urinary bladders bathed in Na+-free solutions. These results in turtle bladder are inconsistent with Na+-anion cotransport but can be accounted for by a Cl-/HCO3- exchange system.
D000818:Animals; D001639:Bicarbonates / Q000378:metabolism*; D001692:Biological Transport / Q000187:drug effects; D002712:Chlorides / Q000378:metabolism*; D009092:Mucous Membrane / Q000187:drug effects / Q000378:metabolism; D012964:Sodium / Q000378:metabolism* / Q000494:pharmacology; D014426:Turtles / Q000378:metabolism*; D001743:Urinary Bladder / Q000187:drug effects / Q000378:metabolism*
D001639:Bicarbonates; D002712:Chlorides; D012964:Sodium