Genetically modified endothelial cells are grown on the inside surface of a cylindrical hollow fiber with an internal diameter of 200 μm and a length of 15 cm. This bioreactor is being used to remove...

Genetically modified endothelial cells are grown on the inside surface of a cylindrical hollow fiber with an internal diameter of 200 μm and a length of 15 cm. This bioreactor is being used to remove toxin A from plasma at 37°C. These cells carry on their surface an enzyme that instantly converts toxin A into a harmless substance. The plasma flows through the hollow fiber at the rate of 0.75 cm³
min⁻¹. If toxin A enters the bioreactor at a concentration of 0.01 mol L⁻¹, find the toxin concentration at the outlet of the hollow fiber bioreactor. The toxin has a MW of 785 g mol⁻¹.