NEET BIOLOGY

Detailed explanation-1: -The purpose of the contractile vacuole is to serve as the cell’s pump for expelling excess water and waste. If the cell did not have a contractile vacuoule, it could aquire so much water that it would eventually burst-like an over-filled water balloon-and die.

Detailed explanation-2: -Without a contractile vacuole, the cell would fill with excess water and, eventually, burst, because the surrounding water is hypotonic with respect to the contents of the cell, water is transferred across the amoeba’s cell membrane by osmosis.

Detailed explanation-3: -Contractile vacuoles protect a cell from absorbing too much water and potentially exploding by excreting excess water. Wastes, such as ammonia, are soluble in water; they are excreted from the cell along with excess water by the contractile vacuoles.

Detailed explanation-4: -These contractile vacuoles will function alternatively. The contractile vacuole will swell and finally expel out water through opening in the cell membrane. If the contractile vacuoles were absent in the Paramecium then the cell will swell and burst.

Detailed explanation-5: -Cells have a natural tendency to consume water, which is controlled by contractile vacuoles. They keep the cell’s shape and turgor pressure by removing excess water, preventing the cell from expanding and bursting. The cell can burst if contractile vacuoles aren’t present or aren’t working properly.