energy requirement / end product / metabolic machinery / chemical and biochemical properties / chemical reactions / chemical change / waste product / free energy yield / chemical identity / metabolic systems / hydrolysis products / transcription machinery / degradative product / rapid chemical change / chemical composition / enzyme-catalyzed chemical changes / chemical structure / energy relationships / rigorous chemical analysis / defined chemical intermediates / metabolic product / free energy exchange / /
Biochemical Facts behind the Definition and Properties of METABOLITES