Why don't bacteria need a distinct nucleus and that's necessary in a human cell?

为什么细菌不需要单独的细胞核,而对人类细胞则为必需

耶鲁公开课 - 生物医学工程探索课程节选

Human cells don't have a cell wall but most bacteria do.

人类细胞没有细胞壁而大部分细菌有

耶鲁公开课 - 生物医学工程探索课程节选

There are different kinds of cell walls in bacteria but they have a rigid cell wall and our cells don't have a rigid cell wall, we have a fluid lipid like cell wall.

细菌有不同种类的细胞壁,但都很坚固,人类细胞没有坚固的细胞壁,我们有一层类似细胞壁的流动的脂类

耶鲁公开课 - 生物医学工程探索课程节选

That is, if Steve Meretzky's game-hardened super-bacteria don't kill us first.

FORBES: Magazine Article

Extra bacteria don't cancel out the sugar in the yogurt.

FORBES: Magazine Article

In adults, C. difficile infection is associated with diarrhea and unpleasant side effects, and while babies don't seem to be as affected by the bacteria, the presence of C. difficile could push out the Escherichia and Shigella that are so critical to developing a strong and healthy immune system.

CNN: Connection between dirty diapers, childhood health