<prompt> What isare effect on the membrane when extracellular concentration of K decreased?magnitude of RMPnegativity of the membranemagnitude of RMPnegativity of membrane  <response>: While K is positively charged and more abundant on the inside, there exists a great amount of negatively charged paicles the anions, accounting for the negative charge inside the membrane. The cell membraneforms the border of a neuron and acts to control the movement of substances into and out of the cell. Ref guyton and hall textbook of medical physiology 12e pg 58 