| 单词 | 长链 |
| 释义 | 〔sphingosine〕A basic, long-chain, unsaturated amino alcohol, C18H 37NO 2, found combined with lipids in the brain and in nerve tissue. 鞘氨醇：一种不饱合的长链氨基醇，化学式为C18H 37NO 2，与脂结合而存在于脑中或神经组织中 〔Flory〕American chemist. He won a 1974 Nobel Prize for developing methods of studying long-chain molecules.弗洛里，保罗·约翰：(1910-1985) 美国化学家，因发展了研究长链分子的方法而获1974年诺贝尔奖〔DNA〕A nucleic acid that carries the genetic information in the cell and is capable of self-replication and synthesis of RNA. DNA consists of two long chains of nucleotides twisted into a double helix and joined by hydrogen bonds between the complementary bases adenine and thymine or cytosine and guanine. The sequence of nucleotides determines individual hereditary characteristics.脱氧核糖核酸：一种在细胞中带有基因信息的核酸，能够自行复制并合成核糖核酸，DNA由两个核甙酸长链组成，这两个核甙酸链交结成一个双螺旋体〔dextran〕Any of a group of long-chain polymers of glucose with various molecular weights that are used in confections, in lacquers, as food additives, and as plasma volume expanders.葡聚糖：一组葡萄糖长链多聚物，分子量不同，用于糖果剂，或做食品添加剂，也可用作血浆体积膨胀剂 |
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