Wednesday, November 21, 2012

Webquest Part 1

1.       Who is credited with discovering the virus?
Robert Buist was the first person to see viruses, while doing a small pox experiment. 
2.       Is a virus a living thing?
Scientist are trying to figure if it is a living thing. 
3.       Viruses are incredibly small.  Why are we not able to see viruses with the compound light microscopes we use in the science lab?
You can not see viruses with a compound light mircroscope because they are smaller then a wave length of light. 
4.       What shapes do viruses assume?
Viruses come in a lot of different shapes but the most common are rods, crystals, cubes, spheres, filaments, and a tadpole shape. 

5.       How does a virus invade a host cell? 
They first attach themselves to the walls of a cell or a bacteria.  Then the virus's sheath contracts and drives its core through the cell wall.  Next the nucleic acid passes through the core into the host cell.  Then lastly, the first nucleic acid disappears and then hundreds of virions appear causing the cell to rupture, which lets all these copies start the cycle over again. 
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