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黑白瓶问题,实质上是对必修1《分子与细胞》模块光合作用与细胞呼吸这一主干知识的考查。在平常考试中,当学生遇到有关黑白瓶问题时,经常出现“绕着走”、犯迷糊等问题,其实是没有真正理解黑瓶、白瓶中测得的数据到底表示什么含义。为了帮助学生顺利解决上述问题,本文结合典型例题将黑白瓶问题常考查的角度进行初步归类,供读者复习时借鉴。一、黑白瓶测实际光合量的原理黑白瓶法,即氧气测定法,多用于水生生态
The problem of black-and-white bottles is essentially an examination of the key knowledge of the module 1 of “molecules and cells” required for photosynthesis and cellular respiration. In normal examinations, when students encounter problems related to black and white bottles, they often have problems such as “going around” and confused. In fact, they do not really understand the meaning of black bottles. What they mean in a white bottle is exactly what they mean. In order to help students to successfully solve the above problems, this article with a typical example of the black and white bottles often examine the perspective of the initial classification for readers to learn from. First, the actual black-and-white bottle photosynthetic theory black and white bottle method, the oxygen determination method, used for aquatic ecology