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Answer:
Plant cells have cell walls that are rigid, the animal cells have flexible cell membranes, in a fresh water protists it has a contractile vacuole, in bacteria it has rigid cell wall. To maintain the cell volume after osmosis is the challenge they face.
Movement from water molecules from the region of higher concentration to a medium of lower concentration is called Osmosis. This happens through a semipermeable membrane. And this process continues till in both outside and inside the molecules are balanced.
Osmosis is the biological movement of the substance across the membrane. Osmoregulation, cell wall, and vacuoles are the way that regulates osmosis.
What are the different methods of osmosis regulation?
Osmosis is the movement of the substance from the high concentration to the low concentration region across the semi-permeable membrane.
In animal cells, osmosis is dealt with by osmoregulation as the excess amount of salt and water is removed from the blood to maintain the balance.
In-plant cells the rigid cell walls allows the balance of the fluid in and out of the cell, and also in the bacteria, the cell wall protects the cell from getting lysed with the excess concentration.
In the freshwater protists, the osmosis is regulated by the contractile vacuoles that balance the water content in and out of the cell by pumping excess out.
Therefore, osmoregulation, cell wall and contractile vacuole help in dealing with osmosis.
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