If a concentration or electrical gradient is present for a given substance, the substance will always passively permeate the membrane.
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Q111: At the equilibrium potential for K+, the
Q112: Most of the membrane potential of the
Q113: Cations are attracted to a more positively
Q114: Cations tend to move toward a negatively
Q115: The direct actions of the sodium-potassium pump
Q118: The equilibrium potential for a given ion
Q119: When equilibrium is achieved and no net
Q120: At resting potential, the outside of the
Q121: Net sodium movement into the cell occurs
Q121: In _ transport, sodium and the accompanying
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