Plant cells without walls, known as protoplasts, are very fragile, and it has been difficult to keep them alive under a ...

But it's possible to see things much smaller than that if we use magnification. There's three types of microscope: light, like this one here, and two types of electron microscopes, like those ones ...

To use a light microscope to examine animal or plant cells. To make observations and ... Line it up so that the specimen – if you can see it – is in the centre of the stage, where the light ...