Penetration of Sugars, Steroids, Amino Acids, and Other Organic Compounds into the Interior of the Squid Giant Axon


Squid axons were exposed to solutions of C(14)-labeled compounds. After 60 minutes the axoplasm was extruded and assayed for radioactivity. The following compounds penetrated to about 3 per cent of what would have been expected had there been no barrier to free diffusion and the subsequent attainment of equivalent distribution: mannitol, sucrose, glutamate… (More)


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