Differentiate bacteria and virus.?

Viruses are the most elementary of organisms consisting of only an RNA strand for chromosomal structure and a protien capsule enveloping. The nature and function of the virus lies in its RNA. In fact, viruses can be deactivated and preserved in the form of harmless crystals. They are actually dead in nature and function in this form. This is how viruses border on the living and nonliving forms. Bacteria are much more advanced organisms having a DNA (double stranded) with more complex physiology and function.

Differentiate bacteria and virus.?
A bacteria is a much larger organism than a virus. It takes an electron microscope to view a virus.
Reply:virus is entirely harmful .but bacteria is both useful and harmful.virus is much smaller than bacteria
Reply:Bacteria can live on their own , virus have to invade a host in order to replicate .





Virus is much smaller than bacteria. Infact Virus is so small, their complete structure can not be seen clearly even with the most advanced microscope ( electron ) . Bacteria is way bigger. Some virus like HIV virus are able to mutate quickly and unpredictably , and most virus are harmful . Bacteria can be harmful ( E.coli , Salmonella ), while others can be used in food industry ( to make dairy products like yogurt, cheese ..)





When a virus replicate , their " daughter " is often the same size as the parents. when bacteria replicate, their daughters are often smaller size . Bacteria replicating machenism is like cell division.





Virus has no cell wall, no cellular structure or cell membrane, it only has DNA or RNA ( coiled string of nucleic acide ) enclosed in a protein capsule. Bacteria are often unicellular organisms has cell wall , cell membrane , and internal structures like mitochondria , golgi apparatus...bacteria can live independently and replicate on their own .
Reply:Bacteria are cellular organisms, but viruses do not have cells, or even parts of cells. Viruses are just DNA or RNA protected in a protein shell. Bacteria have the characteristics of life, they need food, they can multiply, etc. Viruses do not need food. They cannot multiply on their own. They are like parasites in that they require living cells in order to reproduce. They hijack cells and use their DNA or RNA to force the cells to make more viruses. Some people consider viruses to be alive, some people say they are not alive. Just because they can reproduce does not make them alive. There are molecules which can mindlessly create copies of themselves if given the right conditions. Maybe this is how life started, we don't know.

broadleaf