Question

If cell shrink in hypertonic solutions ( high solute concentration ) how some aquatic animals ( star, fish ,sharks , octopus ) survive in marine water as it contain large amount of large and if cell swell in hypertonic solutions than how some aquatic animals (salmon,frogs, etc) lives in fresh water rivers .

Answer 1

Answer:

A Hypertonic solution is a solution, which contains higher solute concentration. If animal and plant cells are kept in hypertonic solution then exosmosis will occur. Exosmosis is a process in which the water molecules move from inside of the cell of lower solute concentration to the outside of the cell of higher solute concentration through the cell membrane. Due to exosmosis, both animal and plant cells will shrink.