10. The correct answer is B. The concentration of sodium is much higher inside the cell than outside. This statement is NOT true about the resting potential. In fact, the concentration of sodium is much higher outside the cell than inside.
12. The correct answer is E. inhibit transmission of nerve signals by the neuron.
10 . Which one of the following statements is NOT true about the resting potential? (28.3) [Hint]
A. The neuron's plasma membrane is much more permeable to potassium than to sodium.
B. The concentration of sodium is much higher inside the cell than outside.
C. The sodium-potassium pump plays a role in maintaining the resting potential.
D. Inside the cell, the concentration of potassium is much higher than the concentration of sodium.
E. All of these are true statements.
12 . A drug that causes potassium to leak out of a neuron, increasing the positive charge on the outside, would _____.
A.make it easier to trigger action potentials in the neuron
B.cause the cell to release its neurotransmitter
C.speed up nerve signals traveling the length of the cell
D.act as a stimulant
E.inhibit transmission of nerve signals by the neuron
1 answer
1 answer