Question

describe the involvement of K+ and NA+ channels in maintaining membrane potential

Answer 1

The Potassium leak channel and Sodium-Potassium pump maintain the resting potential in neuron. The voltage gated sodium and potassium channels are involved in the sequence of an action potential along with the membrane. Both Na​+​​ and K​+​​ channels are per meant and able to cross the membrane in resting neuron. Na​+​​ will drag the membrane potential toward its positive equilibrium potential. K​+​​ will try to drag the membrane potential toward its negative equilibrium potential. Voltage channels are closed and the Potassium leak channel and the sodium pump maintain the resting membrane potential of -70 mV. The Sodium/Potassium Pump (ATPase) is responsible for maintenance of the membrane potential at -70mv. The protein actively pumps three sodium ions out of the cell and pumps two potassium ions into the cell.