No energy storage in chemical bonds
No energy storage in chemical bonds
复制标题
化学键中没有能量储存
DOI：
10.1080/00219266.1976.9654072
复制
发表时间：
1976
影响因子：
1.1
通讯作者：
S. Novick
中科院分区：
文献类型：
--
作者：
S. Novick
将某些生物分子作为能量来源的说法常常导致错误的想法，即当这些分子中的键断裂时，能量就被释放出来。这种误解由于“高能键”一词的广泛使用而得到加强。一组大学科学专业的学生被要求从分子上解释“脂肪为身体提供能量”这一说法。他们的反应清楚地反映了键能与化学反应相关的能量的混淆。建议生物过程中的能量变化应基于以下观点：化学系统中的单一相互作用涉及键的形成或断裂。键的形成总是伴随着能量的释放，而打破键总是需要能量。化学过程中的能量变化是键断裂和形成的净结果。为了更好地理解能量转换，应该谨慎对待高能键的想法。The Nuffield A.
References to certain biological molecules as energy sources frequently lead to the mistaken idea that energy is released when bonds are broken in these molecules. The misconception is reinforced by the widespread use of the term ‘high-energy bond’. A group of university science majors were asked to give a molecular interpretation of the statement, ‘fats supply energy to the body’. Their responses clearly reflect the confusion of bond-energy with the energy associated with a chemical reaction. It is suggested that energy changes in biological processes should rest on the following ideas: Single interactions in chemical systems involve formation or breaking of bonds. Formation of a bond is always accompanied by a release of energy, and breaking a bond always requires energy. Energy changes in chemical processes are the net result of the breaking and formation of bonds. In the interests of a sound understanding of energy transformations, the high-energy bond idea should be treated cautiously. The Nuffield A...