Viruses straddle the definition of life. They lie somewhere between supra molecular complexes and very simple biological entities. Viruses contain some of the structures and exhibit some of the activities that are common to organic life, but they are missing many of the others. In general, viruses are entirely composed of a single strand of genetic information encased within a protein capsule. Viruses lack most of the internal structure and machinery which characterize 'life', including the biosynthetic machinery that is necessary for reproduction. In order for a virus to replicate it must infect a suitable host cell.
Maybe the pertinent question is not whether viruses are alive, but rather to what extent do they play a role in the movement and molding of life as we perceive it today?
2007-01-07 02:11:22
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answer #1
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answered by Anonymous
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2016-08-27 17:29:46
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answer #2
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answered by Josephine 3
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Living
2007-01-07 01:17:10
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answer #3
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answered by Problem Child 2
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Viruses are not considered living organisms .They need a host .One of the important parts of the cell that they lack is the ribosomes. They lack ribosomes and therefore cannot make proteins on their own. Proteins are needed for transcription, translation and all other functions of a living organism. Viruses are like parasites, if they do not live in the body of a host they'll die. That's why they are not considered living organisms in some categories.
2007-01-07 03:07:09
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answer #4
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answered by Anonymous
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Viruses are NOT considered as a microorganism. So, you can generally say that it is dead.
However, when it invades a host, it takes control of a host, it can now multiply and do whatever it wants, it is now considered living.
In general, you can say that viruses are non-living organism and the only exception that proves this wrong is when it takes over a host.
2007-01-07 01:29:46
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answer #5
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answered by PIPI B 4
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viruses can neither be talked approximately as as residing nor ineffective organisms, they're intermediate between the residing and ineffective because of the fact those micro-organisms in a common ecosystem are ineffective yet whilst they get a helpful subject(helpful season) they grow to be energetic and multiply at as quickly as.
2016-12-15 17:55:04
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answer #6
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answered by andie 4
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They are dead when outside the body but acts as living thing when they are inside the body.
2007-01-07 01:27:36
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answer #7
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answered by Sidd 2
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Both. They become active only when present in the 'suitable' living host.
2007-01-07 01:20:40
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answer #8
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answered by ag_iitkgp 7
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they are considered not living because they cannot do 1 fundamental characteristic of life - they cannot reproduce on their own. They require the use of a host.
2007-01-07 01:17:22
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answer #9
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answered by saltshaker 1
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They are not alive because they do not reproduce. There are other similar "creatures" like prions that get reproduced through the machinery of a host cell.
2007-01-07 01:22:48
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answer #10
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answered by bill h 2
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