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  4. The osmotic expansion of a cell kept in water is chiefly regulated by

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Q. The osmotic expansion of a cell kept in water is chiefly regulated by

AIPMTAIPMT 2014Cell : The Unit of Life

Solution:

Vacuoles are non cytoplasmic areas present inside cytoplasm and separated from latter by tonoplast. They are believed to be formed by expansion and pinching off from ER. There occurs a large central vacuole and many small vacuoles in plant cells. They play a major role in osmotic expansion of cell.