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1.在讲氧气时,为了直观地说明氧气对动物体呼吸而发生氧化过程的重大意义,和血红蛋白对氧气和二氧化碳能起输送作用的功能时,可补充二氧化碳和氧气对鸡血作用的简单实验。其方法是将氧导管和二氧化碳的导管分别通到有抗凝剂(例如草酸钠)的鲜鸡血里,不一会,通入二氧化碳的鸡血就变为暗赤色,通入氧气的鸡血变为鲜红色。从而得出血红蛋白容易和氧气、二氧化碳结合的结论。然后可再将两个导管交换位置,则两个容器里的鸡血的颜色和以前恰好相反,从而容易得出血红蛋白既有结合氧气和二氧化碳的功能,又有容易释放氧气和二氧化碳的功能。2.在讲一氧化碳时,为了说明一氧化碳对动物体有剧毒所产生的原因时,可补充演示血红蛋白容易和一氧化碳结合和结合非常牢固的简单实验。其实验
1. In the case of oxygen, a simple experiment that supplements the effects of carbon dioxide and oxygen on chicken blood in order to intuitively demonstrate the significance of the oxidation process of oxygen to the body breathing and the function of hemoglobin in the transport of oxygen and carbon dioxide . The method is to pass the oxygen catheter and carbon dioxide catheter respectively to the anticoagulant (such as sodium oxalate) fresh chicken blood, soon, into the blood of carbon dioxide into a dark red, oxygenated chicken blood Become bright red. This leads to the conclusion that hemoglobin is easily bound to oxygen and carbon dioxide. The two catheters can then be swapped in again, and the color of the chicken blood in both containers is exactly the same as before, making it easy to draw the conclusion that hemoglobin combines both oxygen and carbon dioxide and has the potential to release oxygen and carbon dioxide. 2. In the case of carbon monoxide, to demonstrate why carbon monoxide is highly toxic to animals can be supplemented with simple experiments demonstrating that hemoglobin readily binds to carbon monoxide and binds strongly. Its experiment