Printed in Great Britain ACTIVE TRANSPORT OF POTASSIUM BY THE CECROPIA MIDGUT VI. MICROELECTRODE POTENTIAL PROFILE

Potential differences can only appear across barriers with high electrical resistance. Therefore it should be possible to locate the potential produced by an electrogenic pump across such high resistance barriers by using intracellular microelectrodes. An opportunity to locate such a pump is afforded by the electrogenic active transport o