Bacteria are less affected by the osmotic effect of salt than animal cells because bacterial cell walls are less permeable.

细菌比动物细胞更少受到盐的渗透作用的影响，因细菌的细胞壁不大有渗透性。

youdao

Except for praline and hydroxyproline which are imino acids all the amino acids are l-amino acids although d-amino acids do occur in bacterial cell walls and in some antibiotics.

除了脯氨酸和羟基脯氨酸(亚氨基酸)以外，所有的氨基酸是l -氨基酸，但是d -氨基酸出现在细菌细胞壁和一些抗体中。

youdao