<prompt> What isare effect on membrane when extracellular concentration of K is decreaseda magnitude of RMPb negativity of the membranec magnitude of RMPd negativity of membranebccacad  <response>: Points to noteConcentration of ionsNa concentration higher in ECFK concentration higher in ICFCl- concentration higher in ECFK leak channels allow K to move from ICF to ECFNa is prevented from entering to the cell.Inside the cell, negativity is higher because NaK pump pushes out 3 Na while taking in 2 K.K leaks to ECF, along the concentration gradient, until the electrical gradient prevents further leak inside the cell is more negative compared to ECF. So electrical gradient wants to pull positive charges towards ICF while concentration gradient wants to pull K towards ECF. This brings a balance in movement of K.Now, if the concentration of K in ECF is increasedThe concentration gradient of K is decreased.Less leaking of K from ICF to ECF.More positivity of the membrane OR Less negativity of the membrane OR Decreased magnitude of RMP.If the concentration of K in ECF is decreasedThe concentration gradient of K is increased.More leaking of K from ICF to ECF.More negativity of the membrane OR Less positivity of the membrane OR Increased magnitude of RMP. 