Why do sodium ions need channels in order to move into and out of cells? Because
ID: 42027 • Letter: W
Question
Why do sodium ions need channels in order to move into and out of cells?
Because they are charged, and the hydrophobic interior of the phospholipid bilayer prevents them from moving through
Because they are uncharged, and the hydrophilic exterior of the phospholipid bilayer repels them
They don't need channels. They can pass freely across the membrane.
Because they are charged, and the polar head of the molecule repels them.
A.Because they are charged, and the hydrophobic interior of the phospholipid bilayer prevents them from moving through
B.Because they are uncharged, and the hydrophilic exterior of the phospholipid bilayer repels them
C.They don't need channels. They can pass freely across the membrane.
D.Because they are charged, and the polar head of the molecule repels them.
Explanation / Answer
ans A. sodium ions need channels to move in and out of the cell , because they are charged and the hydrophobic interior of the phospholipid bilayer prevents them from moving through.