细菌和真核生物之间的差异|比较类似术语之间的差异

这关键区别在细菌和真核生物之间细菌缺乏真实核and membrane-bound organelles while the eukaryotes possess a true nucleus and membrane-bound organelles。

细胞是所有生物体的基本功能和结构单位。根据细胞的基本结构，有两个基本类别的生物，即原核生物和真核生物。原核生物是具有简单细胞结构的单细胞生物。他们包括两个主要小组；细菌和古细菌。另一方面，真核生物具有复杂的细胞结构，并具有良好的细胞。它们包括生物，真菌，动植物。由于细菌和真核生物都是活生物体，因此它们具有一些相似之处，例如具有细胞膜，核糖体, DNA that carries genetic information, etc. However, since bacteria are prokaryotes, bacteria and eukaryotes show many structural and functional differences with eukaryotes. This article intends to highlight the difference between bacteria and eukaryotes.

1。概述和关键差异
2。What are Bacteria
3。什么是真核生物
4。细菌和真核生物之间的相似之处
5。并排比较 - 细菌与表格形式的真核生物
6。Summary

什么是细菌？

所有细菌都是原核生物，因此具有原核生物的所有基本特征。细菌无处不在，因此到处都存在，包括深海洞穴，火山缘，温泉等极端环境，以及在不存在其他生命的冰川内。因此，它们具有非常简单的细胞结构，没有膜结合的细胞器和真实的核。基本上，此功能使它们与真核生物不同。此外，所有细菌都是单细胞的。他们拥有70年代的核糖体。

此外，它们包含一个圆形染色体作为其遗传物质。此外，它们具有称为质粒的染色体DNA圆圈。质粒在基因工程中很重要，作为载体，它们是将基因输送到宿主生物体中的车辆。

Key Difference Between Bacteria and Eukaryotes

图01：细菌

Bacteria are in different shapes and different sizes. Coccus, Bacillus, spirochetes and Vibrio are four common shapes of bacteria. Moreover, many bacteria are harmless while a small percentage is pathogenic.

什么是真核生物？

Eukaryotes are one of the two major categories of living organisms. They have a complex cell structure with a true nucleus and membrane-bound organelles such as mitochondria, chloroplasts, ER, Golgi bodies, etc. The eukaryotic genome represents by a number of chromosomes composed of DNA molecules tightly bound with histone proteins. Unlike in bacteria, the eukaryotic genome is present inside the nucleus.

Figure 02: Eukaryotes

此外，与细菌不同，真核生物无法在恶劣的环境中生活。真核核糖体更大，由40S小亚基和60S大亚基组成。通常，真核生物是多细胞的。但是，单细胞生物也很少。真核生物包括原生动物，藻类，真菌，植物和动物。

细菌和真核生物之间有什么相似之处？

细菌和eukaryotes are living organisms.
这y grow, develop and reproduce.
此外，当他们完成生命跨度时，他们死亡。
Also, both possess a cellular organization.

细菌和真核生物有什么区别？

Bacteria lack a true nucleus and membrane-bound organelles while eukaryotes possess a true nucleus and membrane-bound organelles. This is the key difference between bacteria and eukaryotes. Furthermore, one other major difference between bacteria and eukaryotes is that the bacteria are unicellular while eukaryotes are mostly multicellular. However, certain eukaryotes are unicellular.

此外,进一步区别一个细菌d eukaryotes is that the bacteria possess a single chromosome, and it is present in the cytoplasm. But, eukaryotes have multiple chromosomes, and they are present inside the nucleus. Also, when considering the size of a cell of each group, the bacterial cell is smaller than a eukaryotic cell. Hence, it is also a difference between bacteria and eukaryotes. Besides, bacteria have small ribosomes which are the 70S while eukaryotes have large ribosomes which are 80S. Therefore, this is another difference between bacteria and eukaryotes.

以下信息图介绍了细菌和真核生物之间差异的更多详细信息。

摘要 - 细菌与真核生物

总结细菌和真核生物之间的差异；细菌是属于原核生物的微小，无处不在的微生物。它们是简单的单细胞生物。此外，它们缺乏真正的核和膜结合的细胞器。另一方面，真核生物是复杂的生物。它们通常是多细胞的。真核细胞具有真正的核和膜结合的细胞器。此外，细菌在细胞质中具有单个染色体，而真核生物在细胞核内有多个染色体。同样，细菌核糖体小，而真核核糖体大，大和80s。