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细胞是生物体的基本组成单位。细胞在生长、分化过程中以及成熟后,由于新陈代谢的活动而产生了一些废物或贮藏物质,这些物质统称为后含物。植物细胞内所含的后含物,多种多样,它们有的存在于液泡中,有的存在于细胞器内,有的则分散于细胞质中。其中以淀粉、糖、脂肪和蛋白质为主。鉴定细胞后含物,在生产实践上是很重要的,如酿酒、纺织等工业中要寻找含有淀粉及糖的原料;在利用野生油料时,首先要确定油脂的存在,此外,在一定条件下,细胞后含物还可作为鉴定植物种类的依据。研究植物细胞后含物,常用的方法之一是显微化学方法。就是应用某种化学药剂处理,使其与细胞中的某种物质发生化学变化,从而产生特殊的显色反应,并通过显微镜直接鉴定
Cells are the basic building blocks of organisms. During growth, differentiation and maturation, cells produce some waste or storage material due to the metabolic activity. These substances are collectively referred to as aftertastes. The post-contained contents of plant cells are diverse. Some of them exist in vacuoles, some in organelles, and others in cytoplasm. Among them, starch, sugar, fat and protein are the main components. The identification of cell contents is very important in production practice. For example, in industries such as winemaking and textiles, it is necessary to find raw materials containing starch and sugar; in the use of wild oil, it is necessary to first determine the presence of oil, in addition, under certain conditions. Cellular inclusions can also be used as a basis for identifying plant species. One of the commonly used methods for studying plant cell residues is microscopic chemistry. Is the use of a chemical agent to chemically change certain substances in the cell to produce a specific color reaction and be identified directly by the microscope