Question

我想要细菌和病毒的分别

Answer 1

细菌和病毒的分别: 病毒体积细些而细菌体积大些 病毒唔可以被介定系生命或非生命体而细菌一定系生命体 病毒唔一定有DNA，但细菌一定有 病毒唔可以主动移动，而细菌可以(因为有Flagellum) 病毒Reproduce 时有新新陈代谢，而平时冇，但细菌时时有 病毒有Enzyme 可以切断其他细胞的基因，但细菌没有 病毒冇 pla *** id，细菌有pla *** id 病毒要依负目标生物繁殖，细菌可以自行在适合环境大量繁殖 病毒可以侵袭大些范围的生命体，而细菌侵袭少些范围的生命体 (如病毒bacterio*****e可以侵袭细菌，但细菌却不可以侵袭病毒) 病毒通常是有害的，而大部份的细菌是无害，甚至有益，只有小部份细菌有害 病毒可被利用成一个Vector 将Desirable Gene 注入身体，而细菌则被利用来制造有人类有需要的物质(如Insulin) 病毒可能引致癌症(如引致Hepatitis B的病毒)，有害细菌似乎只会破坏我们身体组织
病毒不是生物菌没有任何细胞构造(细胞壁 + 细胞膜)菌只有一层蛋白质外壳~内裹有弓绳型的核酸菌只能生存在生物细节内(寄主)
所以它们可算是寄生物 病菌=细菌 是生物～是原核生物界菌能自己进行细胞分裂菌
细菌可使用药物治疗finished 病毒必须用身体的免疫力/白血球finished
参考: ME
Bacteria can be infected by Virus. Virus is much *** aller
and have no effect on antibody ... Bacteria (singular: bacterium) are unicellular microani *** s. They are typically a few micrometres long and have many shapes including spheres
rods
and spirals. Bacteria are ubiquitous in every habitat on Earth
growing in soil
acidic hot springs
radioactive waste
[1] seawater
and deep in the earth's crust. Some bacteria can even survive in the extreme cold and vacuum of outer space. There are typically 40 million bacterial cells in a gram of soil and a million bacterial cells in a millilitre of fresh water; in all
there are approximately five nonillion (5×1030) bacteria in the world.[2] Bacteria are vital in recycling nutrients
and many important steps in nutrient cycles depend on bacteria
such as the fixation of nitrogen from the atmosphere. However
most of these bacteria have not been characterised
and only about half of the phyla of bacteria have species that can be cultured in the laboratory. en. *** /wiki/Bacteria ================================== A virus is a microscopic particle (ranging in size from 20 - 300 nm) that can infect the cells of a biological ani *** . Viruses can replicate themselves only by infecting a host cell. They therefore cannot reproduce on their own. At the most basic level
viruses consist of geic material contained within a protective protein coat called a capsid. They infect a wide variety of ani *** s: both eukaryotes (animals
yeasts
fungi
and plants) and prokaryotes (bacteria and archaea). A virus that infects bacteria is known as a bacteriophage
often shortened to phage. The word virus es from the Latin
virus
"poison" (syn. venenum). en. *** /wiki/Virus