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  4. Contractile vacuole in protozoan Amoeba is meant for

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Q. Contractile vacuole in protozoan Amoeba is meant for

UP CPMTUP CPMT 2008Biological Classification

Solution:

Contractile vacuole is a membrane-surrounded cavity in a cell that periodically expands, filling with water, and then suddenly contracts, expelling its content to the cell’s exterior. It is thus an organ of osmoregulation and excretion. Contractile vacuoles are common in fresh water sponges, Amoeba, and Paramecium.