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绿色植物的光合作用是地球上生命的存在,繁荣和发展的根本源泉,因此光合作用机制的研究就成为生物学中的一个主要的理论问题。近年来由于物理学和化学的发展,现代分析方法的改进,在光合作用研究方面有不少新的进展。本文的目的就是选择这方面的若干重要的新成就作一简单介绍。一、一股概念光合作用是绿色植物通过叶绿素吸收日光能把二氧化碳和水同化为有机物并释放氧气的过程,可以下列总方程式来表示: CO_2+H_2O 光叶绿素→(CH_2O)+O_2-112仟卡 CO_2是很难被还原的,在常温常压之下在无机界几乎不可能遇到CO_2被还原的现象。水也是很难被氧化的,我们知道要使水蒸汽分解为H_2与O_2需要很高的
The photosynthesis of green plants is the fundamental source of the existence, prosperity and development of life on Earth. Therefore, the study of photosynthesis mechanism has become a major theoretical issue in biology. In recent years, due to the development of physics and chemistry, the improvement of modern analytical methods has made a lot of new progress in photosynthesis research. The purpose of this article is to give a brief introduction of some of the important new achievements in this area. First, a concept of photosynthesis of green plants through the chlorophyll sunlight absorption of carbon dioxide and water assimilate into organic matter and the release of oxygen process can be expressed by the following general equation: CO_2 H_2O light chlorophyll → (CH_2O) + O_2-112 Qian cards CO_2 is difficult to be reduced, and it is almost impossible for inorganic CO 2 to be reduced under normal temperature and pressure. Water is also hard to be oxidized, and we know that it takes a lot to break down water vapor into H 2 and O 2