<prompt> True about Na - K pump is thatInvolves ATPase activityIt can move Na in and out of cellElectrically neutralPumps out one Na for one K  <response>: In Na- K exchange, 3 Na goes out and 2K goes into the cell with the utilization of ATP. Hence it is a primary active transport. Due to the net flow of Na outwards, there is a potential difference that occurs. 