一、能量代谢的变化在人体所进行的新陈代谢过程分为两方面:一方面是人从环境中获得氧气与食物,食物在身体细胞内由简单的有机物质合成为复杂的有机物质的过程称为组成代谢,包括身体组织的建设和修补及能量来源的储藏;另一方面是身体细胞内的复杂有机物质,经过氧化作用分解成为简单的有机物质的过程,称为分解代谢,包括组织的分解和能量原料的分解。身体内的一切生理活动,例如肌肉的收缩,腺体的分泌及神经的传导均需要能量的供给,才能维持他们的正常工作,究竟能量是怎样产 First, the energy metabolism changes in the human body carried out by the metabolic process is divided into two aspects: on the one hand from the environment to obtain oxygen and food, food in the body cells from simple organic synthesis into complex organic matter process is called Composition of metabolism, including the construction and repair of body tissues and energy sources of storage; the other hand, the body cells of complex organic matter, after oxidation decomposition into simple organic matter process, called catabolism, including tissue decomposition and Energy decomposition of raw materials. All physical activity in the body, such as muscle contraction, glandular secretion and nerve conduction are the need for energy supply in order to maintain their normal work, exactly how the energy is produced