Reading 3
The pressure that exists in a plant cell is called turgor pressure. Turgor pressure causes water to move through the cell membrane, either in or out of the cell, to maintain a constant concentration of water and minerals critical to their function. If the concentration of water and some minerals becomes too high, the action is reversed. The transpiration (loss of water) is stopped and additional water enters the cell to correct the problem, which causes higher turgor pressure (plant is upright). If the concentration becomes too low, water passes out of the cell (transpiration increases) again to correct the problem by causing lower turgor pressure (plant wilts). If the external environment does not improve, the plant will die.
Write a claim, provide your evidence by filling in the diagram, and include reasoning to help describe how a plant regulates its water and mineral concentrations by using turgor pressure.