所谓呼吸商(respiratory quotient简称RQ)是指细胞呼吸所释放的CO_2的摩尔数和吸收的O_2的摩尔数的比例,又称呼吸系数。分析和研究它,有利于解决细胞呼吸的很多问题。生物体的一切生命活动都需要消耗能量,能量主要由细胞呼吸提供。细胞呼吸主要是指糖类、脂质和蛋白质等有机物在活细胞内氧化分解为二氧化碳或分解为一些不彻底的氧化产物,且伴随着能量释 The so-called respiratory quotient (respiratory quotient referred to as RQ) is the ratio of the number of moles of CO 2 released by cellular respiration and absorbed O 2, also known as respiratory coefficient. Analysis and research of it, help solve many problems of cellular respiration. All life activities of the organism need to consume energy, which is mainly provided by the cellular respiration. Cell respiration mainly refers to the carbohydrates, lipids and proteins and other organic matter in living cells oxidized and decomposed into carbon dioxide or decomposition of some incomplete oxidation products, and accompanied by energy release