Author Question: After the peak of an action potential, what prevents sodium ions from continuing to enter the cell? ... (Read 103 times)

craiczarry · **on:** Jun 22, 2018

After the peak of an action potential, what prevents sodium ions from continuing to enter the cell?

a. There is no longer a concentration gradient for sodium.
b. The sodium-potassium pump greatly increases its rate of activity.
c. All the available sodium ions have already entered the cell.
d. The sodium gates in the membrane close.

Question 2

Diabetes insipidus literally means passing without taste because the urine is produced in such large quantities that it is tasteless. This disease is most likely caused by a problem with the production or release of ____.

a. renin
b. vasopressin
c. angiotensinogen
d. prostaglandins