Are Viruses Living?

9 June 2004

Let’s first define life. According to the online Merriam-Webster Dictionary, life is “an organismic state characterized by capacity for metabolism, growth, reaction to stimuli, and reproduction.”

Viruses are not living things. Viruses are complicated assemblies of molecules, including proteins, nucleic acids, lipids, and carbohydrates, but on their own they can do nothing until they enter a living cell. Without cells, viruses would not be able to multiply. Therefore, viruses are not living things.

When a virus encounters a cell, a series of chemical reactions occur that lead to the production of new viruses. These steps are completely passive, that is, they are predefined by the nature of the molecules that comprise the virus particle. Viruses don’t actually ‘do’ anything. Often scientists and non-scientists alike ascribe actions to viruses such as employing, displaying, destroying, evading, exploiting, and so on. These terms are incorrect because viruses are passive, completely at the mercy of their environment.

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  • Firas Al-Ballouz

    Homework completed,thanks.

  • Khan Baba

    Hey, ur saying that acording to Merriam-Webster Dictionary, But here Merriam-Webster Dictionary, also define virus is Living thing./……………………….
    First Reserch plz

  • me! :-)

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    I meant every, not ebery.

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  • DestinyAndrews

    explain how a virus is a living thing???

  • jmstarr

    is this accurate?

  • Angus Landeryou

    I thinj viruses arent alive or dead. They are simoly biological machines, dependant in a “user” (cells) to do anything in life.
    .that said they are the most useless things I could think of. Even Jellyfish contribute to the world in their own weird jelly-ish way

  • DIPRT

    Good

  • DC Welker

    Now you are getting to the root. Think about this as well, if viruses were never alive to begin with, why do we get vaccines. The medical field teaches us the vaccines are made from dead or weak (but alive) viruses. Do you smell some bullcrap in there yet?

  • Jack Black

    So, you’re saying that viruses utilize their own metabolism to evade counteractions actively, right?

  • Tinytina

    Not a doctor or student, but have a questioning mind. Suppose on a new planet we encountered a cellular form like a virus, should it be killed or should it be considered a life form for that planet. To me a virus is alive, it moves from cell to cell, it reproduces and changes to protect itself. The stimuli is whatever we use to try to kill it, the virus changes so that the agent doesn’t work any longer or it kills the host.

  • Tinytina

    http://news.discovery.com/human/health/viruses-with-immune-systems-130227.htm…since I made statements that I thought viruses are living, decided to do some research. This article shows that scientist agree with my theory.

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  • RjoyD

    This is very interesting, as well as helpful… Thank You :-)

  • Isaac Toth

    Just like they need DNA to replicate, so do we.

    We make more cells by copying DNA
    We make babies with gametes, gametes are cells

  • Michael Kleider

    We are all passive if you want to define passive as “at the mercy of the environment”. This is not so much a critique of your answer which is consistent with popular orthodoxy in biology. It’s a critique of the biological paradigm that sees organism as distinct from environment. No organism would be functional without it’s environment. I believe that in order to make a false distinction between “organism” and “environment”, biologists had to gerimander the definition of organism in arbitrary ways. I think the example of a virus not counting as an organism–something that so obviously is a living thing–cries out for this pole rigging to be noticed. Those who think that there is a hard distinction between life and non life that can be summarized by 7 transcendental characteristics want to believe in hard categorize so badly that they have become very gullible.

  • Taco Bell

    Lmao dead.

  • MoHo

    cool

  • syakila sahal

    so is it we can classified virus as particles?