Answer to Question #99300 in Cell Biology for Asmi

Question

in paramecium the activity of contractile vacuole was found to increase when transferred from one medium to another, hence it can be concluded that the transfer was from which solution

Answer 1

The transfer of paramecium was made from the solution containing higher salt concentration to the solution with lower salt amounts (freshwater). As a result, due to the change in salt concentration, water flows inside the cell from the environment. The process increases the activity of contractile vacuole that expels water out of the paramecium cell.