Question

What do you think the reason for bursting of blood cells when kept in distilled water

Answer 1

Naturally, solutes, like humans, hate to be crowded and like to have their own space. If given the opportunity, the solutes floating around in red blood cells would move through the cell membrane and float around freely outside. However, since the membrane is impermeable, the solutes draw water in. When too much water is drawn into the cell, the cell bursts. This wouldn't be a problem if the surrounding water wasn't distilled and had a lot of solutes of its own. Then the solutes in the surrounding water would compete with the solutes in the red blood cell to pull water