Here is a more realistic visual representation of a (bacterial) cytoplasm: https://www.youtube.com/watch?v=2fobDHHl11c https://www.youtube.com/watch?v=2fobDHHl

Here is a more realistic visual representation of a (bacterial) cytoplasm: https://www.youtube.com/watch?v=2fobDHHl11c https://www.youtube.com/watch?v=2fobDHHl11c "The simulation shows 1000 individual macromolecules diffusing, colliding and transiently associating with each other over the course of 10 microseconds of simulation; the translational diffusion coefficient of the GFP in this model is in agreement with experimental measurements." Diffusion, Crowding & Protein Stability in a Dynamic Molecular Model of the Bacterial Cytoplasm. PLoS Comput Biol 6(3): e1000694. doi:10.1371/journal.pcbi.1000694 (Note that the proteins and other macromolecules in the visualization are all individually constructed of hundreds of atoms — tRNA is a common one and has ~729 atoms; other, bigger proteins have thousands; and h2o of course has just 3. Here is an illustration from David Goodsell’s newest book showing the scale: http://imgur.com/a/shqME http://imgur.com/a/shqME)