Abstract
Summary
The enzymatic liberation of inorganic phosphate from adenosine-triphosphate was tested with homogenates of the pharynx, the gonads, the excretory organ, the stomach and the gut of the tunicate Molgula manhattensis (DeKay). The activity in the gut was found to be more than 4 times as high as in the stomach and 20-40 times as high as in the other tissues. The activity in the gut of Molgula was compared with the activities observed by other authors in vertebrate tissues and it was found to be twice that observed in mammalian muscle.
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