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。

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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

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。

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