Molecules move in and out of a cell by diffusion. the picture shows a cell molecules both inside and outside the cell how will the molecules in this illustration move as a result of diffusion out of the cell
into another cell
to the extern environment
into the cell

The molecules on the exterior of the cell will move inwards due to the difference in concentration

Explanation:

This happens because of Endosmosis, where the water molecules move from a region of higher concentration to a region of lower concentration through a semi-permeable membrane. Endosmosis is when the cell swells up due to a higher concentration in the exterior of the cell and a lower concentration in the interior of the cell.

Therefore, the water molecules move inside the cell until the concentrations of the exterior and the interior of the cell is balanced