For a resting neuron, the resting membrane potential is between -60 and -80 mV. Thus, it is estimated to be around -70 mV. Ions of potassium and sodium play significant roles in this resting potential. The sodium-potassium pump uses energy to actively transport Na+ out of the cell and K+ into the cell. This leads to a high concentration of Na+ outside the cell.
What factors contribute to the -70mV resting membrane potential? (select all that apply)
A. Na+ leak channels allow Na+ to leak in.
B. Cl- enters the cell making the inside very negative.
C. K+ leak channels allow K+ to enter the cell down its concentration gradient.
D. Na+/K+ pump generates a high concentration of K+ on the outside of the cell, making the inside more negative.
Frequently Asked Questions
What scientific concept do you need to know in order to solve this problem?
Our tutors have indicated that to solve this problem you will need to apply the Neurons and Action Potentials concept. You can view video lessons to learn Neurons and Action Potentials. Or if you need more Neurons and Action Potentials practice, you can also practice Neurons and Action Potentials practice problems.