Question

All of the following are functions of vacuole, except

• A. Maintains turgidity of plant cells
• B. Provide aqueous environment for accumulation
• C. Play a role in growth by elongation of cells
• D. None of the above

Answer 1

Answer: (D)

None of the above

A plant cell is characterised by a single large sap vacuole. They enclose sap or water with dissolved inorganic and organic substances. It is surrounded by a membrane called as tonoplast. Plant cell vacuole maintains osmotic pressure for turgidity and osmosis. They also store useful as well as waste substances. The growth in terms of increase in size depends on the elongation of the cell. For elongation of the cell, the protoplasm needs to push against cell wall from inside. The generation of pushing force depends on the osmotic pressure created by substances stored in central vacuole. Thus, the correct answer is option D.