| 1. | Many enzymes will not work without the presence of an additional nonprotein substance called a cofactor .
许多酶如不外加一种叫做辅助因子的非蛋白质物质就不能工作。 |
| 2. | Many enzymes will not work without the presence of an additional, nonprotein substance called a cofactor .
许多种酶只有在附加的称为辅因子的非蛋白质物质存在时才起作用。 |
| 3. | Milk - determination of nitrogen content - determination of non - protein nitrogen content
牛奶.氮含量的测定.非蛋白质氮含量的测定 |
| 4. | Food sources proteins are described as essential and nonessential proteins or amino acids
食物来源的蛋白质称为必不可少的非蛋白质或氨基酸。 |
| 5. | Cofactor ( coenzyme ) a nonprotein substance that helps an enzyme to carry out its activity
辅助因子（辅酶） ：维持酶活性所需要的一种非蛋白质的成分。 |
| 6. | Conversely , the relation between the amount of nonprotein - coding dna sequences and organism complexity is more consistent
相对的，非蛋白质编码序列和生物复杂程度的关联，反而相当一致。 |
| 7. | In short , the entry of introns into eukaryotes may have initiated an explosive new round of molecular evolution , based on rna rather than protein
简单的说，插入子进入真核生物后，可能启动了新一回合爆炸般的演化，这次的主角是rna ，而非蛋白质。 |
| 8. | However where the product is nonproteinaceous , of low molecular weight and at the end of a long multienzyme sequence it is extremely unlikely that gene transfer to another host will be feasible
然而，如果产品是低分子量且处于长多酶序列末端的非蛋白质类产品，转基因技术的应用可行性极小。 |
