4. When we eat food, the sodium ions in it collect outside of the cells, and naturally diffuses (passively) into our cells. Too much sodium inside our cells can cause damage. Therefore, our cells have a special protein that continuously pumps sodium from inside our cells to the outside, against the sodiums' concentration gradient (from less crowded to more crowded). In the boxes below, draw a comic strip of:
a. A cell that is surrounded by sodium (using little X's).
b. Sodium atoms moving into the cell
c. The protein pumping sodium atoms out the cell​