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一、光合作用总反应式的确定18世纪以前,人们都认为植物是从土壤中获得生长所需的全部元素的.1771年英国化学家普利斯特利(J.Priestley)发现将薄荷枝条和燃烧的蜡烛放在一个密闭的钟罩里,蜡烛不易熄灭;将小鼠与植物放在同一钟罩里,小鼠也不易窒息死亡.因此,他提出植物可以“净化”空气,现在就把1771年定为发现光合作用的年代.以后又经许多人的研究(见绪论),到了19世纪
First, the determination of the photosynthesis total reaction Before the eighteenth century, people believed that plants were to obtain all the elements needed for growth from the soil. In 1771, the British chemist J. Priestley discovered the sprigs of mint and Burning candles are placed in a closed bell jar, candles are not easily extinguished; mice and plants are placed in the same bell jar, and mice are not easy to suffocate. Therefore, he proposes that plants can “purify” the air. Determined 1771 as the era of photosynthesis, and later by many people (see introduction) to the 19th century