Maybe you should post this again my screen is black !!
Because the process will start and end with the same molecule.
The answer for the question is the Apical meristem.
Growth in plants occurs as the stems and roots lengthen. Some plants, especially those that are woody, also increase in thickness during their life span. The increase in length of the shoot and the root is referred to as primary growth. It is the result of cell division in the shoot apical meristem.
When you excrete sweat for example, you are getting rid of salts and liquids you don’t need and this helps you maintain homeostasis by keeping everything in your body balanced/ stable.