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.
Perkins, Oklahoma. Perkins is a city in southern Payne County, Oklahoma, United States. The population was 2,831 at the 2010 census, an increase of 24.6 percent from 2,272 at the 2000 census. The name is derived from Walden Perkins, a congressman who helped establish the local post office.