新托福iBT词汇分类突破 – Unit 051

by 李笑来 on 2009/12/08

The components of cells are molecules, nonliving structures formed by the union of atoms. Small molecules serve as building blocks for larger molecules. Proteins, nucleic acids, carbohydrates, and lipids, which include fats and oils, are the four major molecules that underlie cell structure and also participate in cell functions.

  • molecule [ˈmɔlikju:l] n.分子
  • union [ˈju:njən] n.结合
  • atom [ˈætəm] n.原子
  • building block [ˈbildiŋ - blɔk] n.结构单元
  • protein [ˈprəuti:n] n.蛋白质
  • nucleic acid [nju:ˈkli:ik - ˈæsid] n.核酸
  • carbohydrate [ˌkɑ:bəuˈhaidreit] n.碳水化合物
  • lipid [ˈlipid,ˈlaipid] n.脂质
  • underlie [ˌʌndəˈlai] v.成为……的基础
  • participate [pɑ:ˈtisipeit] v.参与