Learn about the ultrastructure and organelles of animal, plant, fungal and bacterial cells. BBC Bitesize Scotland revision for SQA National 5 Biology.

This wiring diagram contains 200,000 brain cells and nearly 500 million synapses that sit in a chunk of the visual cortex of the mouse brain that's about the size of one grain of sand. This map has an ...

The diagram below shows the same plant cell, as viewed with the light microscope, and with the transmission electron microscope. Animal and plant cells have certain structures in common.