Cells with volume of 10-10 mL each consisting of 85% w/v water, are dispersed in an aqueous solution in a reactor with a cell density of 109 cells mL-1. Their oxygen demand is 0.3 gO2 h-1(gdry cell)-1. The oxygen solubility in the aqueous solution is 9x10-6 gO2 mL-1. The mass transfer coefficient (kL) in the reactor conditions is 0.13 s-1. State whether the cell growth is mass transfer limited.

Cells with volume of 1010mL each consisting of 85% w/v water, are dispersed in an aqueous solution in a reactor with a cell density of 109 cells mL1. Their oxygen demand is 0.3gO2h1(gdrycell)1. The oxygen solubility in the aqueous solution is 9106gO2mL1. The mass transfer coefficient (kL) in the reactor conditions is 0.13s1. State whether the cell growth is mass transfer limited