The resting potential is dependent upon the electrochemical gradient for potassium ions because: O The permeability of the resting membrane to potassium is higher than for other ions Of the activity of the sodium/potassium ATPase pump Cells contain largely potassium O The permeability to sodium ions is very small except during action potentials

What happen when you open the the GABA channels ? Does it rise the membrane permeability of Na+, K+ or CL? Choose one here? Explain short and briefly only ?

The resting voltage of the cell membrane: O is a property of the cell O is generated by mechanically-gated channels, voltage-gated channels, and ligand-gated channels O is defined by the difference in overall ionic charges between the two sides of the membrane O has a negative value at rest in all cells except neurons O all of the above

Why is the sodium-potassium pump indirectly important to the ac-tion potential and to maintaining the resting membrane potential?

Describe how action potentials are propagated and each step of action potential , be sure to know how Na and K channels, pumps  operate, what is the difference between open, closed and inactivated channels and why

The high affinity ion binding site on P-class pumps is on side of the membrane where the ion is in low concentration. True False

Calculate: The equilibrium potential for potassium at room temp  The equilibrium potential for sodium at room temp  Resting membrane potential of this neuron at room temperature