What is the function of contractile vacuole in paramecium?
A. Produces Enzymes B. Gets rid of excreta C. Stores and digest food D. Gets rid of excess water
Correct Answer: D
Explanation
Osmoregulation. Paramecium and amoeba live in fresh water. Their cytoplasm contains a greater concentration of solutes than their surroundings and so they absorb water by osmosis. The excess water is collected into a contractile vacuole which swells and finally expels water through an opening in the cell membrane. : Excretion of water in Paramecium is carried out by the Contractile vacuoles