There is also water between the molecules, but note that cells are generally quite crowded places. You can check out David Goodsell's images for getting a sense

There is also water between the molecules, but note that cells are generally quite crowded places. You can check out David Goodsell's images for getting a sense of how crowded a cell is. https://www.google.com/search?q=David+Goodsell&tbm=isch https://www.google.com/search?q=David+Goodsell&tbm=isch