Question

If Amoeba is kept in distilled water, its contractile vacuole

• A. remains unaffected
• B. disappears
• C. works slowly
• D. works faster

Answer 1

The correct option is D works faster

The contractile vacuole is an osmoregulatory organelle found in Amoeba. It controls the intracellular water balance by accumulating and expelling excess water out of the cell, allowing cells to survive under hypotonic conditions as in pond water.

If Amoeba is kept in distilled water, its contractile vacuole works faster to expel water due to increased rate of endosmosis.