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7Row7enn7 (June 22, 2008 at 4:05 pm)
Thanks.
WLanier (June 19, 2008 at 1:10 am)
No videos, but various electron microscopes can be used to take photomicrographs of viruses at very high magnifications. Use Google "image" to search the words "bacteriophage" and "virus". There are some lovely pictures of bacterial viruses [bacteriophage] on the first and second pages that pop up. There are also drawings made from electron microscope images.
WLanier (June 19, 2008 at 1:07 am)
Before we get into "live" vs. "not live", let us be clear: Viruses are composed of few molecules, so they are very small; viruses cannot reproduce or carry out metabolism absent a host cell; viruses take over the host cellular machinery to do everything from reading their own genetic code to reproducing their genes to building viral proteins and other molecules and assembling the progeny viruses. A virus is but packaged genes, either RNA or DNA, plus tools to invade a host cell.
debunker1905 (June 19, 2008 at 12:01 am)
Viruses are live organisms.
7Row7enn7 (June 18, 2008 at 5:53 pm)
I wish they could make videos like this with even smaller organisms... Like viruses (though many don't think they're alive).
WLanier (May 29, 2008 at 3:37 pm)
You are correct, but "Cyanobacteria" is a wide and inclusive term for ancient photosynthetic bacteria. "Beggiatoa" is the name for a group of the Cyanobacteria that require hydrogen sulfide. They use the energy of sunlight to remove the hydrogen, releasing sulfur. Look up Beggiatoa in Wikipedia for more. Diatoms do look like boats - you can read about Diatoms on Wikipedia, too.
jen112233445566 (May 29, 2008 at 11:45 am)
the worm looking thing r cyanobacteria right?? and the boat looking one is a diatom??
mannyjabah (November 24, 2007 at 12:18 am)
The bacteria is growing I can tell.
WLanier (June 15, 2007 at 4:27 pm)
Beggiatoa are salt marsh bacteria. Other bacteria that live on decaying material in salt marsh ponds release hydrogen sulfide. Beggiatoa require this hydrogen sulfide. There are probably more than 100-million species of bacteria, of which less than 100 cause human disease. If you encounter bacteria, the odds are 1:1,000,000 that they will cause disease! As far as is known, Beggiatoa cause no human diseases.
purplejane13 (June 15, 2007 at 4:18 pm)
hey wheer can they be found and what kind of sicknes can they develop upon us? |
