The sodium-potassium pump a. uses energy to move sodium ions out of the cell and potassium ions into

The sodium-potassium pump

a. uses energy to move sodium ions
out of the cell and potassium ions into the cell. b. can move sodium ions only
from an area where they are highly concentrated to an area where they are less
concentrated. c. can move potassium ions (K+ ) only toward a region that is
positively charged. d. is part of the myelin sheath.