Cell Cultivations
The cell mass can be measured optically by determining the amount of light scattered by a suspension of cells. The measurements are usually at a wavelength of

600-700nm
400-500nm
500-600nm
300-400nm

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Cell Cultivations
Balanced growth is defined as

cultures undergoing balanced growth while maintaining a constant chemical composition
balancing the growth while changing the nutrient composition
balancing the growth while controlling the pH
balancing the growth while controlling the temperature

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