论文部分内容阅读
一、疑难点拨1.易混概念辨析(1)脂质(脂类)与类脂脂质:包括脂肪、固醇和类脂。脂质概念范围大。类脂:属于脂质的一部分,又可分为磷脂和糖脂。(2)纤维素、维生素和生物素纤维素:由许多葡萄糖分子结合而成的多糖,是植物细胞壁的主要成分。维生素:生物生长和代谢所必需的微量小分子有机物,大致可分为脂溶性和水溶性两种。人和动物缺乏维生素时,会发生特异性病变——维生素缺乏症。生物素:维生素的一种,肝脏、肾、酵母和牛奶中
A difficult point to dial 1. Easy to mix concept analysis (1) lipid (lipid) and lipid lipid: including fat, sterols and lipids. The concept of lipid range. Lipids: are part of the lipid, but also can be divided into phospholipids and glycolipids. (2) Cellulose, vitamins and biotin Cellulose: a polysaccharide composed of many glucose molecules, is the main component of plant cell wall. Vitamins: micro-organisms needed for biological growth and metabolism of organic matter, can be divided into two kinds of fat-soluble and water-soluble. When people and animals lack vitamins, specific lesions occur - vitamin deficiency. Biotin: a vitamin, liver, kidney, yeast and milk