...Nadja Møbjerg; Erik Hviid Larsen; Ivana Novak SUMMARY We studied the mechanisms of K + transport in cells from isolated and perfused collecting tubules and ducts from the mesonephric kidney of the toad Bufo bufo . Cells were impaled with microelectrodes across the basal cell membrane...

... of growth, and the costs of maintenance that arise with the increase in body mass were disregarded. These costs are included in n . In female toads, Bufo bufo , feeding at different rates, the uncorrected value of n was 0·44, when metabolism and growth were expressed as kJ kJ −1 . After correction...