*2.5.1 Carbohydrate catabolism*

The carbohydrates for plants are acquired from photosynthesis process from the atmosphere, a fixed CO2 is converted to carbohydrates from sunlight. The photosynthesis process within the cell for carbon-based metabolites including phenolic compounds helps the carbohydrates to form the building blocks. The two catabolic processes are the precursors of plant phenolic compounds within the plant cell. This includes many pathways such as glycolysis, pentose phosphate, phenylpropanoid pathways etc.
