Which statement(s) is/are true about membrane potentials?
a. They are differences in electrical charge on opposite sides of a membrane
b. They are measured in millivolts, with the sign designating the charge on the outside
c. They exist because the ECF as a whole is positively-charged and the cytosol as a whole is negatively charged
d. They are always positive during the resting state
e. All of the above statements are true.
A
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