how are compound microscopes use to further cell research?

Answer 1

Well, for one thing a compound microscope magnifies much, much more than a simple microscope. Not only that, it generally produces a better image as additional lenses can be added to correct problems that tend to occur with even the most perfect lens (such as light of one colour bending more than others).

Particularly in modern labs, the ability to switch objective lenses is of great benefit because it allows a rapid switch from one magnification to another. Not only are cells small, biologists often want to look at living ones which are also moving! Rapid magnification changes allow you to get a broad view to find what you're looking for, then zoom right in for a good look.

Hope that helps!