Question

Choose the correct answers from the alternatives given.
The contractile vacuoles in Paramecium are used mainly for the :

• A. control of body fluid
• B. storage of water
• C. elimination of nitrogenous wastes
• D. elimination of carbon dioxide and ammonia

Answer 1

The correct option is A control of body fluid

As the paramecium lives in the fresh water, the solute concentration inside the cell is greater than outside the cell hence, the contractile vacuole in the paramecium absorbs the fluid through the process called osmosis.

So, the correct option is 'control of body fluid'.