Blood cells burst in water due to a phenomenon called osmosis.
Osmosis Explained
Imagine a cell as a balloon filled with a concentrated solution. When you place this balloon in pure water, water molecules naturally move from the area of high concentration (outside the cell) to the area of low concentration (inside the cell). This movement aims to equalize the concentration on both sides of the cell membrane.
The Problem with Water
Red blood cells have a specific salt concentration inside them. When placed in pure water, the water molecules rush into the cell, trying to dilute the salt concentration. This influx of water causes the cell to swell and eventually burst, a process called hemolysis.
Why Doesn't This Happen in Our Bodies?
Our bodies have a complex system to maintain the right salt balance in blood. Our blood plasma contains a specific concentration of salts, preventing the sudden influx of water into blood cells. This balanced environment ensures our blood cells stay healthy and functional.
Practical Insights
- Drinking too much water can dilute the salt concentration in our blood, potentially causing problems. It's important to maintain a balanced fluid intake.
- Solutions used in medical procedures are carefully formulated to avoid damaging red blood cells. They often mimic the salt concentration of our blood plasma.
