Digestive phosphatases in amphibians. 2nd communication: Liver, Bile, Pancreas

Abstract

A study is made of acid and alkaline phosphatases of the intestine, liver, pancreas and lung of the frog Rana escalenta. The liver is richest in phosphatases with a slight predominance of the acids. The pancreas and the lung are poorest, specially the latter. The intestine is very poor in acid phosphatase. The relation of alkaline phosphatase livor intestine is very superior to that found in mammal s. In the serum there are from 3 to 6 Bodansky unities of alkaline and from 0.9 to 1.7 of acid phosphatase. In the bile were found between 15 and 200 unities of alkaline and from 4 to 30 of acid. The optimum pH of hepatic phosphatases is of 5 in the acid zone and of 9,6 in the alkaline zone.