Cells have three main problems if they grow too large. 1. Diffusion is too slow to provide materials to the interior of a cell that is too large. Likewise, diffusion can't adequately take out all the wastes from a cell that is too large.
Guymon, Oklahoma. Guymon is a city in and the county seat of Texas County, Oklahoma. As of the 2010 census, the city population was 11,442, an increase of 6.5 percent from 10,472 in 2000. The 2012 census estimate grew to 11,930.
Named after William Jennings Bryan, a presidential candidate and contributor to the 1907 Oklahoma Constitution, Bryan County is located in southern Oklahoma. Fort Washita, founded in 1842, and Fort McCulloch, founded in 1862, were early military posts in the county.