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高中生物必修一第五章中,光合作用原理和细胞呼吸过程既是每年高考中的热点,又是高中生物教学的难点.学生在应用时,准确率低、困惑多.怎样提高学生的解题能力和信心呢?在教学中,笔者总结了以下的计算规律,依规律解题化难为易.一、细胞呼吸计算规律根据酒精发酵反应式,如果CO2释放量=酒精产生量,生物只进行无氧呼吸;如果CO2释放量大于酒精产生量,生物既进行有氧呼吸又进行无氧呼吸.根据有氧呼吸和酒精发酵反应式,如果O2吸收
The fifth chapter of high school biology compulsory, photosynthesis principle and cellular respiration process is not only the hot spot in college entrance examination every year, but also the difficulty of high school biology teaching.Students in the application, the accuracy is low, confused and more .How to improve students’ ability to solve problems And confidence? In teaching, the author summed up the following calculation of the law, according to the law to solve the problem is difficult for easy.Cellular respiration calculation rule According to the alcohol fermentation reaction, if the amount of CO2 emissions = alcohol production, biological only oxygen Breathing, if the amount of CO2 release is greater than the amount of alcohol produced, the organism both aerobic and anaerobic respiration.According to aerobic respiration and alcohol fermentation reaction, if the O2 absorption