Question

Ice fish and Antarctic fish remain active in extremely cold water due to?

• A. Development of thick layer of subcutaneous fat
• B. Development of extra solute in body fluids
• C. Development of ice nucleating protein in extra cellular spaces
• D. Both $\left(2\right)$ and $\left(3\right)$

Answer 1

The correct option is C Development of ice nucleating protein in extra cellular spaces

Ice fish and Antarctic fishes remain active and extremely cold water as they have a special kind of protein which is known as the 'antifreeze' protein.

This is an ice nucleating protein present in the extracellular spaces of the fish body.

This helps keep in the body temperature in accordance with the surrounding environment.

So, the correct option is 'Development of ice nucleating protein in extracellular spaces'