Wednesday, October 21, 2009

Viruses are much smaller than bacteria. Describe two other ways in which they are different?

2516>This is what I found. Website below.








How Are Viruses Different from Bacteria?


Viruses are far smaller than bacteria. They are so small that they could not be seen until the electron microscope was invented in the 1940s. Unlike most bacteria, viruses are not complete cells that can function on their own. They cannot convert carbohydrates to energy, the way that bacteria and other living cells do. Viruses depend on other organisms for energy. And viruses cannot reproduce unless they get inside a living cell. Most viruses consist only of tiny particles of nucleic acid (the material that makes up genes) surrounded by a coat of protein. Some have an outer envelope as well.
Reply:Bacteria is affected by antibiotics, viruses are not.


Bacteria has complete DNA strains, while viruses only have RNA.
Reply:there are plenty of DNA viruses, so that is not a difference. but this is:





each bacterial cell arises either by division of a preexisting cell with similar characteristics or through a combination of elements from two such cells in a sexual process.





viruses replicate inside other cells by injecting their RNA or DNA into the cell or it's nucleus and utilizing the host cell's machinery for replication.
Reply:First and foremost, bacteria are living things and viruses are not--they are boundaries of living and nonliving. Another thing is that bacteria have complete DNA, while viruses only have a single RNA strand to replicate themselves.

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