Explain the water problems encountered by cells in a

fresh water environment, including the role of the wall in

plants.

The plant cell becomes turgid

Explanation; freshwater contains a low amount of salt concentration. when cells are placed in it, it creates an osmotic difference, as the cytoplasm of the cell would be of higher concentration than the surrounding water. as a result, water moves into the cell by osmosis.

Most Unicellular organisms has organelles such as contractile vacuole to expel excess water out of it's cell. if the animal cell is unable to expel water, it bursts.

In plants cells, the cell swells and the swelling is checked by the inflexible and rigid cell wall.

The cell wall of plants are made of cellulose, lignin and pectin.