Metabolic network modelling is a way to understand how living organisms use and produce different chemicals, also known as metabolites.
Imagine you have a bunch of LEGOs that represent different chemicals in a living organism. The way these LEGOs are put together determines how the organism works.
Scientists can use mathematical models to represent these LEGOs and how they interact with each other. They can use this model to predict how the organism will respond to different conditions, such as changing its diet or being exposed to a toxin.
This is important because it allows scientists to better understand how living organisms work, and can help them develop new treatments for diseases.
Overall, metabolic network modelling is like playing with LEGOs to understand how our bodies use and respond to different chemicals.