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Virus injecting its genetic material into a bacterium.
© Gary E. Kaiser
A single virus particle (virion) is in and of itself essentially inert.

Viruses cannot reproduce or express their genes without the help of a living cell.

Once a virus has "infected" a cell, it will "marshal" the cell's ribosomes, enzymes and much of the cellular machinery to reproduce.

Viral reproduction produces many, many progeny, that when complete, leave the host cell to infect other cells in the organism.

Learn more about viruses, visit:


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September 1, 2010 at 10:57 pm
(12) Scav says:

Wait a second, so a virus eats up a cell to reproduce, when the cell is empty it moves in another one until there are no cells left and you die?
It reminds me of human species as if the planet is a living organism and we are the virus…

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