X,Y,Z are the ee ions pet meaule..\\ and V=-30. If at resting membrane potential (RMP), when there is no net electro genic transfer, what is the value of Z?
(A) 20 (B) -20 (C) 80 (D) -80
(C) Ans. c. +80 Resting membrane potential (RMP) is the static state of a membrane, where the net transmembrane electric flux is zero. Non-electrogenic transfer at RMP means X+Y+Z = 0 . Since X = -50 and Y= -30, then Z must be +80 since (-80 +80 = 0)