The chemical reactions and pathways resulting in the breakdown of substances, including the breakdown of carbon compounds with the liberation of energy for use by the cell or organism.
catabolite repression +
cellular metabolic process +
collagen metabolic process +
demethylation +
futile creatine cycle
glycosylation +
hormone metabolic process +
hydrogen metabolic process +
iron-sulfur-molybdenum cofactor metabolic process +