Which of the following is a passive force that acts to encourage Na+ ions to enter resting neurons?
A) random motion, which tends to move ions down their concentration gradients
B) electrostatic pressure, which forces ions down their electrostatic gradients
C) sodium-potassium pumps, which distribute Na+ and K+ ions equally
D) both A and B
E) both A and C
Question 2
Salts in solution separate into positively and negatively charged
A) membrane potentials.
B) EPSPs.
C) IPSPs.
D) ions.
E) crystals.
