2.1.4 Compare the relative sizes of molecules, cell membrane thickness, viruses, bacteria, organelles and cells, using the appropriate SI unit.

-A molecule = 1 nm
-Thickness of cell membrane = 10 nm
-Viruses = 100 nm
-Bacteria = 1μm
-Organelles = up to 10 μm
-Eukaryotic cells = up to 100 μm