Question

what is contraction vacuole?​

Answer 1

Answer:

A contractile vacuole is a sub-cellular structure involved in osmoregulation. It is found predominantly in protists and in unicellular algae. It was previously known as pulsatile or pulsating vacuole.

Answer 2

Answer:

The contractile vacuole is a specialized type of vacuole that regulates the quantity of water inside a cell. In freshwater environments, the concentration of solutes is hypotonic, lesser outside than inside the cell. Under these conditions, osmosis causes water to accumulate in the cell from the external environment.The contractile vacuole acts as part of a protective mechanism that prevents the cell from absorbing too much water and possibly lysing(rupturing) through excessive internal pressure

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