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“CO_2是光合作用的原料”实验属于生物学课程标准(2011年版)中一级主题“生物圈中的绿色植物”下的二级主题“绿色植物的光合作用和呼吸作用”。选用金鱼藻作为实验材料,替换天竺葵,对初中教材实验“CO_2是光合作用必需的原料”进行改进,能增强实验的可操作性和安全性,便于学生在课时内完成该
“CO_2 is the raw material for photosynthesis”. The experiment belongs to the first theme in Biology Curriculum Standard (2011 Edition), the second theme under “Green Plants in Biosphere” and “Photosynthesis and Respiration of Green Plants” . Selection of algae as experimental material, replace geranium, junior high school textbook experiment “CO_2 is the necessary raw materials for photosynthesis ” to improve, can enhance the experiment operability and safety, to facilitate students to complete the class