论文部分内容阅读
高考题引发的实验探究2009年(辽宁、宁夏卷):下图表示酶活性与温度的关系。下列叙述正确的是(B)A.当反应温度由t2调到最适温度时,酶活性下降B.当反应温度由t1调到最适温度时,酶活性上升C.酶活性在t2时比t1高,故t2时更适合酶的保存D.酶活性在t1时比t2低,表明t1时酶的空间结构破坏更严重设问:A选项中酶活性如何变化?实验一:温度方案:未失活情况下恢复到相对适宜环境下处理(课后探究)实验方案:
Experiments triggered by the entrance exam 2009 (Liaoning, Ningxia volume): The figure below shows the relationship between enzyme activity and temperature. The following statement is correct (B) A. When the reaction temperature is adjusted from t2 to the optimum temperature, the enzyme activity decreased B. When the reaction temperature is adjusted from t1 to the optimum temperature, the enzyme activity increased C. The enzyme activity at t2 than t1 high, so t2 is more suitable for the preservation of enzyme D. Enzymatic activity at t1 than t2 low, indicating that t1 when the enzyme is more serious damage to the spatial structure set Q: A options how changes in enzyme activity? Experiment 1: temperature program: Deactivation of the environment to restore to a relatively suitable environment (after-school research) Experimental program: