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绿色植物是生态系统中最重要的生产者,其担负着为整个生态系统中提供能量和有机物的重任,在生态系统的物质循环和能量流动上也处在不可替代的位置,在人类的日常生活中时时刻刻不可或缺。因此,植物的光合作用一直就是人们研究的重点,对于中学生来说,如何区分总光合与净光合也是一个重点和难点。本文将从细胞结构、坐标曲线和概念描述三个方面来帮助学生理解总光合和净光合(如图1)。
Green plants are the most important producers in the ecosystem. They are responsible for providing energy and organic matter to the entire ecosystem. They are also irreplaceable in the material circulation and energy flow of ecosystems. In the daily life of human beings, In the moment indispensable. Therefore, the photosynthesis of plants has always been the focus of research, for middle school students, how to distinguish between total photosynthesis and net photosynthesis is also a key and difficult. This article will help students understand total photosynthesis and net photosynthesis from three aspects: cell structure, coordinate curve and concept description (Figure 1).