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蛋白质是地球上一切生物生命的具体体现者,没有蛋白质就没有生命。而氨基酸是组成蛋白质的基本单位,也是蛋白质水解的最后产物。在自然界中,氨基酸多以结合的方式存在于蛋白质中。常见的氨基酸有二十种,按照它们结构的不同可分为脂肪族、芳香族、杂环族三类氨基酸,其中以脂肪族为最多。在脂肪族氨基酸中,根据分子内所含氨基和羧基数目的不同,又可分为中性、酸性、碱性氨基酸。 在生物专业课的教学过程中,要求学生熟记这二十种氨基酸,如用编成口诀的方法来加强记忆,便可在短时间内取得较好的学习效果。其口诀如下:
Protein is a concrete manifestation of all biological life on Earth. Without protein, there is no life. Amino acids are the basic units that make up proteins and they are the final products of protein hydrolysis. In nature, amino acids are mostly present in proteins in a binding manner. There are twenty kinds of common amino acids, according to their different structure can be divided into aliphatic, aromatic, heterocyclic three amino acids, of which the most common aliphatic. In aliphatic amino acids, according to the different number of amino and carboxyl groups contained in the molecule, they can be further divided into neutral, acidic, and basic amino acids. In the course of biology specialized courses, students are required to memorize these 20 kinds of amino acids. If they use the method of compiling words to strengthen memory, they can achieve better learning results in a short period of time. The following are the words: