[Relationship between temperature and the rate of reabsorption in the proximal tubules of the river lamprey kidney].

In conditions of temperature raising from 9 degrees C to 19 degrees C, Q10 of the NaCl reabsorption in the proximal tubule was 2.01; Q10 for the short-circuit current in the frog skin was 1.93. Different values of Q10 for reabsorption of isotonic solutions with different contents of NaCl and NaHCO3, were revealed. The data obtained suggest the primary importance of the active transport rather than of physical factors, for the mechanism of proximal reabsorption.