What is the difference between bacteria and virus ?
Answers
Bacteria are single-celled organisms that can live either inside or outside other cells. They can survive without a cellular host.[2] Viruses, on the other hand, are only intracellular organisms, meaning that they infiltrate the host cell and live inside the cell. Viruses change the host cell's genetic material from its normal function to producing the virus itself.
Antibiotics cannot kill viruses, but can kill most bacteria, with the exception of bacteria that have become resistant to the antibiotic.[3] Misuse and overuse of antibiotics have led to antibiotic resistance. Antibiotics are becoming less effective against potentially harmful bacteria. [4] Gram-negative bacteria are highly resistant to treatment with antibiotics, but can be killed by some.[5]
Bacteria have all the "machinery" (cell organelles) needed for their growth and multiplication and usually reproduce asexually
By contrast, viruses generally carry information - for example, DNA or RNA, packaged in a protein and/or membranous coat. They need the host cell's machinery to reproduce. The "legs" of a virus attach onto the surface of the cell and then the genetic material contained inside the virus is injected into the cell. Put differently, viruses are not really "living", but are essentially information (DNA or RNA) that float around until they encounter a sufficient host.
Answer:
virus:
A virus is an ultramicroscopic (20 to 300 nm in diameter), metabolically inert, infectious agent that replicates only within the cells of living hosts, mainly bacteria, plants, and animals: composed of an RNA or DNA core, a protein coat, and, in more complex types, a surrounding envelope.
Virus, explained in everyday words, is an extremely tiny particle that causes an infectious disease. It is generally made up of some RNA or DNA coated in protein. It can only multiply in the cell of hosts that are alive. That means, technically, viruses are not themselves living.
In informal contexts, virus is also commonly used to refer to the disease caused by the virus. And of course, virus has another special meaning when it comes to computers.
The word virus entered English around 1590–1600. It comes directly from the Latin vīrus, meaning “slime, poison.”
bacteria:
Bacteria are ubiquitous one-celled organisms, spherical, spiral, or rod-shaped and appearing singly or in chains, comprising the Schizomycota, a phylum of the kingdom Monera (in some classification systems the plant class Schizomycetes), various species of which are involved in fermentation, putrefaction, infectious diseases, or nitrogen fixation.
Bacteria explained in everyday words:
One-celled organisms that sometimes cause infectious diseases but, very often, are essential to keeping us healthy or are harmless. They come in three shapes, resembling a sphere, spiral, or rod.
Bacteria is first recorded in English around 1905–10. Bacterium is older, evidenced by 1840–50. Both words ultimately come, via Latin, from the Greek baktēría, meaning “staff.”