证明光合作用需要光才能产生淀粉的实验材料、一般是采用天竺葵。这种植物固然好,但不一定每个学校都种植。因此,这学期我们选用了小白菜作为光合作用的实验材料。它的好处,首先是取材方便,各校普遍都有种植:第二是植株大小适当,利用盆栽、便于人工管理:第三是移栽容易成活,实验效果很好。1.课堂演示实验在讲课前一个星期选取一株生长旺盛、叶片健全、无病虫害的小白菜移植在花 Photosynthesis requires light to produce experimental materials of starch, geranium is generally used. This plant is good, but not necessarily for every school. Therefore, this semester we chose Chinese cabbage as the experimental material for photosynthesis. Its benefits, first of all, are drawn easily, schools generally have planting: The second is the appropriate size of the plants, the use of potted plants, easy to manage: the third is easy to survive transplanting, the experimental effect is very good. 1 classroom demonstration experiment A week before the lectures choose a strong growth, leaf sound, no pests and diseases of cabbage transplanted in the flowers