Want to point out that this still slightly depends on what cell you are talking about - a mammalian cell is a thousand times larger than a bacterial cell, which

Want to point out that this still slightly depends on what cell you are talking about - a mammalian cell is a thousand times larger than a bacterial cell, which in turn is a hundred or thousand times larger than a virus. An apt comparison is if you were a cell in your body, a bacteria is at best the size of a pea and a virus the size of an ant. Viruses are so small that you can sometimes just crystallize them to study their structure with crystallography as if the entire thing is a single molecule.