Turn the coarse focus so that the stage is as close to the objective lens as possible. You should not look through the microscope to do this. Place the microscope slide – either one you have ...

Cell membranes protect and organize cells. All cells have an outer plasma membrane that regulates not only what enters the cell, but also how much of any given substance comes in. Unlike ...

We can use microscopes to look at objects too small to be seen by the naked eye. The microscope in the picture is a light microscope. It uses focused light passed through the object and two lenses ...