B C HE 3 95. B io ch em is tr yE ssa y o n C ata bolic M eta bolis mC ata bolic m eta bolis m is th e p ro ce ss b y w hic h th e b ody b re a ks d ow n m ole cu le s in o rd er top ro duce e nerg y. T his is in c o ntr a st to a na bolic m eta bolis m , w hic h is th e p ro ce ss b y w hic h th eb ody b uild s u p m ole cu le s, ty p ic a lly u sin g e nerg y. C ata bolis m is a n e sse ntia l p art o f th e b ody'se nerg y p ro ductio n s yste m , a s it a llo w s th e b ody to e xtr a ct e nerg y fr o m th e fo od w e e at a nd u sei t to fu el v a rio us fu nctio ns.T here a