通过分析高一生物学教材中“比较过氧化氢在不同条件下的分解”实验的弊端,尝试运用化学中的排水集气法改进实验,即用自制装置排水收集氧气,通过比较收集氧气的体积来计算过氧化氢在不同条件下的分解速率,变定性实验为定量试验,从而顺利得出酶的催化效率比无机催化剂更高的结论。改进后的实验更安全、误差更小、效果更好。 By analyzing the shortcomings of experiment “Decomposition of Hydrogen Peroxide in Different Conditions” in Gao Yi Biology Teaching Materials, we try to improve the experiment by using the drainage and aeration method in chemistry, that is, to collect the oxygen by the drainage of homemade device and collect the oxygen by comparison Of the volume to calculate the decomposition rate of hydrogen peroxide in different conditions, qualitative experiments for the quantitative test, which successfully obtained the enzyme catalytic efficiency higher than the inorganic catalyst conclusion. The improved experiment is safer, the error is smaller and the effect is better.