one side wall to the cell center ~0.5sec: from pole to pole ~5sec sec
||Young KD. The selective value of bacterial shape. Microbiol Mol Biol Rev. 2006 Sep70(3):660-703 DOI: 10.1128/MMBR.00001-06 p.666 left column 2nd paragraphPubMed ID16959965
|| Beveridge TJ. The bacterial surface: general considerations towards design and function. Can J Microbiol. 1988 Apr34(4):363-72PubMed ID3052749
||P.666 left column 2nd paragraph: "Intracell mixing: Not only does diffusion affect the absolute size of a cell by determining the rate at which it comes into contact with external nutrients, but diffusion also affects cell size by limiting the rates at which proteins and nutrients contact one another within the cell cytoplasm. Beveridge calculated that a 50-kDa protein in a typical rod-shaped cell (∼0.8 μm by 4.8 μm) will take about 0.5 s to migrate from one side wall to the cell center (a distance of 0.4 μm) or will require about 5 s to migrate from pole to pole (primary source)."