Question

Marine fish when placed in tap water bursts because of

• A. Endosmosis
• B. Exosmosis
• C. Diffusion
• D. Plasmolysis

Answer 1

The correct option is A Endosmosis

Marine fish cannot survive in fresh water. The marine fish is used to salt water which has high solutes (salts) and the freshwater is devoid of solutes. As a result, when a marine fish is placed in freshwater, the freshwater will diffuse into the cells due to endosmosis (flow of solutes from an area of lesser concentration to one of greater concentration). This will cause them to swell and burst.

So, the answer is A.