Study the picture below. Why do the arrows point in both directions in the cell within an isotonic solution?
Some water molecules will enter the cell because they are attracted to the solute
particles inside. Since there are also solute particles outside the cell, water from inside
will also leave. The net movement, however, is equal
This shows that at first water will flow into the cell, but after a certain amount of time,
water will always leave the cell until the cell is unable to function
The image is incorrect. In an isotonic environment water will not now in and out of the
cell at all
This shows that the cell is actively moving water in and out as it used ATP to maintain
the process of osmosis.