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Bacterial growth is proliferation of bacterium into two daughter cells, in a process called binary fission. Providing no mutation event occurs, the resulting daughter cells are genetically identical to the original cell.
Upper limit for the size of quarks and ... smallest feature size of production microprocessors in ... length of an average E. coli bacteria; 3–4 μm – size of a ...
Bacteria are also used for the bioremediation of industrial toxic wastes. [229] In the chemical industry, bacteria are most important in the production of enantiomerically pure chemicals for use as pharmaceuticals or agrichemicals. [230] Bacteria can also be used in place of pesticides in biological pest control.
In bacteria, both nutrients and waste products of metabolism reach the interior of the cell by diffusion, which places an upper limit on the size of these organisms.
Scientists did not previously believe these large bacteria could exist because bacteria rely on chemiosmosis and cellular transport processes across their membranes to make ATP. [27] As the cell size increases, they make proportionately less ATP, thus energy production limits their size. [3]
Nitrifying bacteria have an optimum growth between 77 and 86 °F (25 and 30 °C), and cannot survive past the upper limit of 120 °F (49 °C) or the lower limit of 32 °F (0 °C). [1] This limits their distribution even though they can be found in a wide variety of habitats. [1]
As resources become more limited, the growth rate tapers off, and eventually, once growth rates are at the carrying capacity of the environment, the population size will taper off. [6] This S-shaped curve observed in logistic growth is a more accurate model than exponential growth for observing real-life population growth of organisms.
It appears highly improbable that Strain 121 marks the upper limit of viable growth temperature. [3] It may very well be the case that the true upper limit lies somewhere in the vicinity of 140 to 150 °C (284 to 302 °F), the temperature range where molecular repair and resynthesis becomes unsustainable.