Question

Why are molecular movements needed for life? Is this invisible molecular movement necessary for life?

Answer 1

There are different biochemical functions taking place in the whole body. Movement of molecule is important for the metabolic processes and other biochemical functions that helps with sustaining life.

Brownian motion:

The molecules need to interact with each other to take part in the reactions as the site of reaction differs for specific processes. The random motion of molecules is called Brownian motion. ​

Movement of molecules is important as it provides a structure to the organism and also helps with the repair and regeneration inside the organism.