| 单词 | 核糖体 |
| 释义 | 〔spermine〕A crystalline polyamine compound, C10H 26N 4, present in ribosomes and found widely in living tissues along with spermidine. It was originally isolated from semen. 精胺，精素：一种晶体状多胺化合物，化学式为C10H 26N 4,存在于核糖体中，并与亚精胺一起大量存在于活组织中。一旦产生即与精子分离 〔nucleolus〕A small, typically round, granular body composed of protein and RNA in the nucleus of a cell, usually associated with a specific chromosomal site and involved in ribosomal RNA synthesis and the formation of ribosomes.核仁：小而常为圆形的颗粒体，由蛋白质和细胞核中的核糖核酸构成，通常与一特定染色体缔合有直接关系并涉及核糖体核糖核酸的合成和核糖体的形成〔ribosome〕A minute, round particle composed of RNA and protein found in the cytoplasm of living cells and active in the synthesis of proteins.核糖体：一种微小圆形的由RNA及蛋白质构成的微粒，发现于活细胞的细胞质中，且活跃于蛋白质的合成中〔spermidine〕A polyamine compound, C7H 19N 3, found in ribosomes and living tissues and having various metabolic functions. It was originally isolated from semen. 亚精胺：一种多胺化合物，化学式为C7H 19N 3，存在于核糖体及活组织中，具有各种代谢功能。一旦产生即与精子分离 〔polyribosome〕A cluster of ribosomes connected by a strand of messenger RNA and functioning as a unit in protein synthesis. Also called polysome 多核糖体：由一束信使核糖核酸联结的一簇核糖体，在蛋白质合成中起一个单位的作用 也作 polysome |
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