Pictured here is the movement of Na* and K* across a cell membrane. Is facilitated diffusion used to move the ions? Why or why not?
A)
Yes, this is facilitated diffusion because of the use of membrane proteins.
B)
No, this is not facilitated diffusion because ions are moving from low to
high concentration.
C)
Yes, this is facilitated diffusion because charged molecules are utilizing
membrane proteins to move against the concentration gradient.
D)
No, this is not facilitated diffusion because because charged molecules are
utilizing membrane proteins to move against the concentration gradient.