Bacterial cell walls are often negatively charged, which means that they repel any potential harmful molecules that also happen to be negatively charged.

细菌细胞壁通常带负电荷，这意味着它们排斥任何碰巧带负电荷的潜在有害分子。

In turn, the complement causes powerful enzymes to eat through the bacterial cell wall and make the organism burst.

疾病治疗 为了治疗患者，医生必须首先做出诊断，即得出关于疾病性质的结论。

Underneath the bacterial cell wall, there's the plasma membrane which is the most important layer because it encloses the cytoplasm which is a gel-like substance composed mainly of water that also contains cell components, enzymes, and various organic molecules.

质膜存在细菌细胞壁下面，这是最重要的一层，因为它包裹了胞质；胞质是主要由水组成的凝胶状物质，同时也包含细胞成分、酶及各种有机小分子。