关于自然界中,植物怎样利用自然界中的各种原料,来合成各种植物含有物方面的知识,人们一向知道得很少。且不要说那些复杂的植物成分如吗啡、奎宁等在植物中怎样被合成的情形,人们知道得少,就是那最基本的光合作用的全部化学过程,人们还未澈底全部了解。这些问题,一向是自然科学中的一个大谜,虽然历来有许多不同的学说来解释,但都很少直接证据。直至最近,由于同位素探迹实验的广泛应用,才发现了比较可靠的证据,使这方面的研究呈现了新的气象。事实上,这种研究是完全必要的。就拿植物体中最基本的合成作用,所谓光合作用来讲,植物体利用了日光中的能,以自然界中二氧化碳与水为原料,藉植物体本身所特有的叶绿素的作用,合成了植物体最基本的食物——葡萄糖。二氧化碳+水+能(来自日光)叶绿素(?)葡萄糖+氧我们且不去计较其中复杂的化学变化,先拿一个简单的方程式来拢统地表示一下:6CO_2+6H_2O+674,000卡→C_6H_(12)O_6+6O_2由此可见光合作用包含二重伟大的意义,一是制 People always know very little about how natural plants and plants make use of the various raw materials in nature to synthesize various plant contents. Not to mention how complex plant components such as morphine and quinine are synthesized in plants. People know less, that is, the whole chemical process of the most basic photosynthesis, and they have not yet been fully understood. These problems have always been a big mystery in the natural sciences. Although many different theories have always been used to explain this, there is very little direct evidence. Until recently, due to the widespread use of isotope-based experiments, more reliable evidence was found and the research in this area presented a new climate. In fact, this kind of research is absolutely necessary. Take the most basic synthetic role of the plant body, the so-called photosynthesis is concerned, the plant body to use the sun’s energy to carbon dioxide and water in nature as raw materials, plant itself by the specific role of chlorophyll, the synthesis of plants The most basic food - glucose. Carbon dioxide + water + energy (from sunlight) Chlorophyll (?) Glucose + Oxygen We do not care about the complex chemical changes. Let’s take a simple equation to describe: 6CO_2 + 6H_2O + 674,000 cards → C_6H_12 ) O_6 +6 O_2 This shows that photosynthesis contains two great significance, one system