Did you ever see structures of various bio-molecules?  Did you observe that most of the bio-molecules contain lots and lots of hydroxyl (-OH) group in them. For example glucose which is one of the most important bio-molecules contains five hydroxyl groups. Did you ever wonder why only hydroxyl groups? These hydroxyl groups have something to do with the water in biological systems.

glucose

 

Are you excited to know about it, then keep reading.

We all know that in most of the biological systems water is a major component and without water no system can work.

 

We also know that water is works also works as a solvent in almost all the biological systems.

Now you might be knowing that Hydrogen bond is one of the chemical bonds in our nature. Hydrogen bond is also present between water molecules.  The hydroxyl group which is almost like water with one hydrogen less can form very strong hydrogen bonding with water. No other  organic group can form such  a strong, and that is why there are many hydroxyl groups .

Due to this hydrogen bonding the bio-molecules and enzymes can mix very well in biological systems and can effectively do their work. For example glucose can mix up with water containing cytoplasm in the cell and can participate in energy liberation process.

I hope that you got the answer to the question.

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