Guangxiang George Luo
Bioenergetic metabolism is that the overall process through which free energy is acquired and utilized by living systems to hold out their various functions. Free energy is that the most useful thermodynamic concept in biochemistry. A reaction can occur spontaneously as long as ΔG, the change in free energy is negative. The reactions are coupled by the shared chemical intermediate. Energy is extracted from foodstuffs by three different stages. Processes involving the transfer of electrons are of immense biochemical significance.