Why are viruses not believed to be living micro-organisms

In general, viruses are a distinct group comparing to others. Viruses have similar characteristic as a living organism, but it also lack some of the element that a living organism have. Viruses are a hereditary material that may be single strand genome, or other may contain a double strand genome which is ribonucleic acid or deoxyribonucleic acid.

Viruses are very small species, when a virus is not in contact with a cell , it is just a protein that contains a genome. In the other hand, when it is in contact with a cell, it will requires help from the cells that have been inserted into to duplicates itself. I agree that viruses are considered not living organisms because they can not do many functions by themselves without entering a cell. Cell theory define Cells as the basis of life in the universe, all living organisms are made of cell, and all cells created by other old cells.

There are many types of cells that can be categorize. Prokaryotic cell and eukaryotic cell. These two types of cell have similarities and differences. It has two membrane that looks like envelope that isolates the nucleus parts from the rest of the cell. Nucleus have many function, and one of them is to make rRNA and collect proteins. Also, it tells the cell what to do regard specific things.

Golgi apparatus is sacs of cisterna, that looks like folds. Golgi modifies, describes, packs, and concentrate protein. It delivers protein to the outside of the cell, during revising and correcting the protein. Virus are not quite alive. Despite their potential to kill, these potent pathogens are in fact considered to be non-living, as alive as the screen that you are reading this article on. How is this possible?

How can something as nasty as a virus spread so fast, reproduce and infect other living things but not be considered a living creature? The answer is complex and has been a subject of debate since the moment they were first named in There is no single undisputed definition that offers a hallmark of life. Some of the more common questions to distinguish between living and non-living things are as follows.

Does it have a metabolism? Read more: What came first, cells or viruses? They fail the second question for the same reason. Unlike living organisms that meet their energy needs by metabolic processes that supply energy-rich units of adenosine triphosphate ATP , the energy currency of life, viruses can survive on nothing.

In theory, a virus can drift around indefinitely until it contacts the right kind of cell for it to bind to and infect, thus creating more copies itself. In short, yes. For one thing, some viruses do contain parts of the molecular machinery required to replicate themselves. The gigantic mimivirus — an example so large that it was initially mistaken for a bacterium, and has a genome larger than that of some bacteria — carries genes that enable the production of amino acids and other proteins that are required for translation, the process that for viruses turns genetic code into new viruses.

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