biochemical index

例句：

1. 1.The study of biochemistry is essential for understanding the functioning of cells.
   研究生物化学对于理解细胞的功能至关重要。
2. 2. The researchers used a biochemical index to identify the presence of certain proteins in the sample.
   研究人员使用生物化学指数来识别样本中特定蛋白质的存在。
3. 3. The biochemical index was used to measure the concentration of glucose in the blood.
   生物化学指数被用来测量血液中葡萄糖的浓度。