The Resting Membrane Potential/Quiz

Type classification: this is a quiz resource.

1 What are the 3 main factors that produce and maintain the Membrane potential?

	Donnan Equilibrium, Membrane selectivity, concentration of ions.
	Membrane selectivity, Active transport, Donnan Equilibrium.
	Membrane selectivity, Donnan Equilibrium, Excess negative charge.
	Active transport, Excess negative charge, concentration of ions.

2 The Nernst equation is used to obtain an accurate value for E_m?

	TRUE.
	FALSE.

3 What is the most imporatnt factor in setting the resting membrane potential?

	K+ concentration gradient
	Concentration of ion
	Na+ permeability
	Active transport

4 Using the Nernst equation calculate the E_k+ if the intracellular concentration is 410 mmol/l and the extracellular is 22mmol/l assuming that the temperature is 20^oC. What is your answer?

	+69
	-79
	-74
	+54

5 What would the units be for the product from the Nernst equation?

	mV-millivolts
	A-Amps
	C-Coulombs
	Ion/Sec