Below are a selection of mind maps covering this section.  BEFORE you look at them, only using your GCSE knowledge, make your own mind map to summarise one of the following:

1. Cells (organelles, function) 

2. Movement (diffusion, osmosis, active transport)

3. Specialised cells (structure, function)

4. Microscopy (calculations, units, different types)

THEN - look at the mind maps below and see if you can extend any of the branches on them to make them more detailed.