论文部分内容阅读
对人类来说,糖类不仅具有营养价值,而且有些糖本身有其特殊的生理活性,因此糖类在医学教学中的深广度要求比在化学系中的要求还高,同时糖的Haworth透视式又是糖类教学的重点和难点。生物化学的糖酵解等代谢过程中,所涉及的糖及其衍生物,均用哈氏式表示(新近,糖类构象式虽渐渗入医学文献,但远不及哈氏式那样被广泛采用),其中不仅有许多正常的哈氏式,而且还有些非常的(即旋转了的或翻转了的)哈氏式。蔗糖与棉子糖中的果糖就是最常见的、被翻转了的哈氏式,同时只有在熟悉正常哈氏式的基础上才能认识非常哈氏式,这就要求人们要有足够清晰的空间概念,而哈氏式模型是让医学生树立这一空间概念的必不可缺的教具。一、模型制作材料直径约2mm的粗铁丝。做一只单糖哈氏式,平均需铁丝456mm至556mm,重约27克。
For humans, sugars not only have nutritional value, but also some sugars have their own special physiological activities. Therefore, the depth and breadth of sugars in medical education are higher than those in the chemistry department, while the sugar Haworth perspective It is also the focus and difficulty of sugar teaching. In biochemical glycolysis and other metabolic processes, the involved sugars and their derivatives are all represented by the Hastelloy equation. (Recently, although the sugar conformation type has gradually infiltrated the medical literature, it is far less widely used than the Hastelloy type). Among them are not only many normal Hastelloy but also some very (that is, rotated or flipped) Hastelloy. Fructose in sucrose and raffinose is the most common and overturned Hastelloy. At the same time, it is only when you are familiar with normal Hastelloy. You can know very Harvard. This requires people to have a clear enough space concept. The Hastelloy model is an indispensable teaching aid for medical students to establish this spatial concept. First, the model is made of coarse iron wire with a diameter of about 2mm. To make a monosaccharose-hashes type, the average iron wire is 456mm to 556mm and weighs about 27 grams.