The relative concentrations of molecules on either side of a cell membrane are:
Glucose 0.1M outside and 0.2 M inside
K⁺ 0.1 M outside and 0.2 M inside
Na⁻ 0.3 M outside and 0.1 M inside
CI 0.1 M outside and 0.4 M inside
Would the cell require energy to transport a K⁺ ion from the inside to the outside of the cell?
a. You cannot tell from the information given.
b. yes
c. no
d. Channel proteins cannot be selective for particular ions.
